that and more at 6:00. >> thank you. the "cbs evening news with scott pelley" is next. captions by: caption colorado >> pelley: t >> pelley: tonight investigators tell us the texas terror suspects are just two of thousands they are now tracking in the united states. and in phoenix, we've learned more about the men behind the assault. a cbs news investigation has found that taxpayers are spending billions of dollars on dubious drugs for wounded warriors. as a silicon valley legend is remembered, his tragic death exposes a danger in the gym. and don't trust your eyes-- one of these works of art is actually a cbs news correspondent. captioning sponsored by cbs this is the "cbs evening news" with scott pelley.

>> pelley: this is our westerne edition. we've learned that both gunmen in sunday's texas terror assault were being watched by federal investigators, but they were not considered among the most likely to pull off an attack. today, isis claimed responsibility for what would be its first strike in the united states, though investigators doubt it. a lone, unidentified police officer killed both suspects as they opened fire outside anje auditorium near dallas that was hosting more than 200 people at an anti-islam event. jeff pegues begins our coverage. >> reporter: law enforcement sources say 31-year-old elton simpson and 34-year-old nadir soofi were well armed when theyin opened fire on police in garland, texas. investigators found they were carrying two ak-47 assault rifles and two handguns. both men were known to the f.b.i., but one official tells cbs news they were not considered high-priority threats. the bureau is investigating several thousand individuals across all 50 states.

simpson was the subject of a terrorism investigation nine years ago and was convicted in 2011 of lying to the f.b.i. about wanting to join terrorists in somalia. he received three years' probation. within the last month, he had come under government surveillance again. the f.b.i. was also aware of soofi, because he was living with simpson. in an audio posting online, isis claimed responsibility for the failed attack. but investigators are still trying to determine whether the two men were directed by isis or just inspired by its message toge attack western targets.n simpson had multiple twitter and facebook accounts. just before the attack here, pledged allegiance to the terror group and wrote, "may allah accept us as mujahideen." this is another case where online activity appears to have played a role in inspiring an attack. scott, social media is the common thread running through many of these investigations. >> pelley: jeff, thanks verynk much.

so, who were these two men? ben tracy's been digging in phoenix. >> i don't know how i'm going to live with it. >> reporter: sharon soofi says finding out that her son, nadir, was one of the two shooters was a punch in the gut. >> when your child dies under these kind of circumstances, you just... it just leaves you numb and empty. >> reporter: nadir soofi was 34 and born in dallas. he was raised muslim and spent six years living with his family in pakistan. he returned to the u.s. to attend the university of utah. his mother says he ran a carpet cleaning business in phoenix and had an eight-year-old son whom he adored. soofi was sharing this apartment with his friend elton simpson. the two frequented this phoenixsi mosque for friday prayers where they were both described as quiet and polite. elton simpson was 31, and known to other muslims as ebrahim. he was born in illinois but moved to phoenix with his family

and converted to islam at a young age. he attended washington high school where he played on the basketball team. did he strike you as someone capable of violence or terrorism? >> absolutely not. i wonder if he just snapped. >> reporter: christina sitton represented simpson when he was charged with making a false statement to federal agents involving terrorism in 2010. what was he like interpersonally with you? >> he was very kind, very quiet, very respectful. he was devout, so he didn't shake my hand.n' he wouldn't shake any other women's hands in the office. >> reporter: in a statement, simpson's family called his behavior "an act of senseless violence," and added, "just like everyone in our beautiful country, we are struggling to understand how this could happen." here at the mosque in phoenix, the imam says simpson came to prayers less frequently after his arrest in 2010.la and, scott, they say they had not seen him here in the weeks leading up to the attacks in garland. >> pelley: ben tracy, thanks. now with some unique insight

into all of this, we'll turn to cbs news contributor michael morrell, who was formally number two at the c.i.a. michael, is it likely this attack was inspired by isis or directed by isis? >> scott, there's no evidence that isis directed the attack, no evidence that they were in communication with these two individuals, much more likely that these individuals were self-radicalized. whether that was by isis or whether that was by al qaeda is an open question. >> pelley: what does it tell you that isis was so quick to claim f responsibility for this? >> scott, that's interesting. i really think it's a sign of weakness on isis' part. this is a bit of a stretch for them, if you think about it. this was not a successful attack. there was no open devotion by these individuals to isis. so i actually think this might s be a sign of weakness, a reflection that they see that their momentum has slowed a bit.do >> pelley: what do you make of the fact that one of theseas

suspects, simpson, was known to law enforcement for years? >> scott, there's a lot of individuals who, at some point in their life, had some link to terrorism. you can investigate them. you can surveil them up to a point, but you can't do it forever. the resources of law enforcement are limited. >> pelley: michael morrell former deputy director of the c.i.a. michael, thank you very much. >> you're welcome. >> pelley: now to another important story arising from a cbs news investigation. american troops and vets suffering with pain are being prescribed dubious drugs that cost taxpayers hundreds of millions of dollars. the drugs are concocted by so- called compounding pharmacies, which make custom prescriptions. the abuse of patients and the breathtaking bills have surged in recent months and jim axelrod is looking into this. >> reporter: major general richard thomas has a big expensive problem on his hands.al

>> it's just been an astronomical explosion of the charges in a relatively short period of time. >> reporter: thomas, who is also a doctor, oversees tricare, theov military's health benefit system. in the last year, tricare spending on compounded prescriptions has surged from $42 million a month to more than $300 million. >> we're on track this year to spend over $2 billion unless we get our hands around this, $2 billion. >> reporter: virtually all of the spending is for products the d.o.d. believes are of dubious clinical benefit, like these scar and pain creams. they can be billed for up to $15,000 for a one-month supply. is there anything in these creams that justifies the expense? >> not that we can find. >> reporter: the creams are marketed directly to military personnel. at events like this one outside the gates of fort sam houston in san antonio. a free lunch to thank soldiers

for their service? >> there's no free lunch. these individuals, their patriotism is directly tied to their paycheck. they're not helping these soldiers. >> reporter: and they're not in it alone. dozens of web sites advertise the creams as custom-made cure- alls for service members' pain and wounds with little or no cost. this company, healing 4 heroes makes it simple-- just fill out this online form and submit your request. >> every patient that i have loves these products. h >> reporter: deanna dutting is the owner of healing 4 heroes. a cbs news producer posing as a potential sales rep recently met her at a restaurant in florida and dutting shared the pitch she makes to service members and veterans. >> hey, here's these amazing creams. they're completely free. all you have to do is type in your tracking number online and submit it. >> reporter: dutting told us a doctor then calls the patientte for a phone consultation and writes a prescription. this one-month supply of scar and pain creams, plus a dietary supplementing costs taxpayer around $25,000. >> if you want to feel bad or do

your own research, you can dot like the rest us did but we got over it real quick once we started making our money. >> reporter: dutting told us she only collects 3%, that most of the money goes to patient care america, a compounding pharmacy in florida that makes the creams and supplements.he >> how much is the pharmacy making? >> oh, millions. >> reporter: patient care america's c.e.o. patrick smith declined our request for an interview, but said pain creams offer military personnel an alternative to addictive pain killers. in this video statement provided to cbs news: >> pain creams allow theseeams patients to seek relief from their suffering without experiencing the negative and often addictive side effects of those medications. >> reporter: are these creams a viable alternative for treating the pain of wounded warriors who don't want to be addicted to the medication? >> they don't appear to be. we don't have any evidence that supports that. >> reporter: ultimately, isn't it the responsibility of the military to make sure you're not getting taken advantage of?

>> absolutely. compounding itself is a good tool for to us take care of our patients. we don't want to stop it, but what we do want to stop is the waste, fraud, and abuse we're seeing, specifically in the area of some of these topical applications for pain medicines and scar revisions. >> reporter: this week, tricare is implementing a new claims screening process to reduce spending on compounded drugs d which now cost the pentagon roughly $18 million each day. >> the american people have no problem at all taking care of these soldiers, these troops especially the wounded warriors. but they're not paying their taxes for this. >> reporter: in the company statement to cbs news, patientt care america said it has no financial relationship with healing 4 heroes, nor has it ever endorsed its actions. and following our meeting, deanna dutting told us healing 4 heroes no longer markets patient care america products, but she still has an active web site scott. >> pelley: important work produced by emily brand. thank you very much, jim. and the story doesn't end there. there is going to be more on this tomorrow on "cbs thisan

morning," and right here on this broadcast tomorrow night. jim confronts one of the doctors who is writing these prescriptions. today, former arkansas governor mike huckabee joined the race for the republican nomination for president, making the announcement in his hometown hope. na also, the birthplace of bill clinton. nancy cordes is there. >> i am a candidate for president of the united states of america. ( cheers and applause ) >> reporter: 59-year-old miketo huckabee entered the race today better funded and better known than the last time he ran. one thing that has not changed is his down-home rhetoric. >> government in washington is dysfunctional because it's become the roach motel-- people go in but they never come out. ( applause ) >> reporter: that way with words and his background as a baptist minister made huckabee a surprise star in iowa eight years ago. huckabee's books and his radio

and tv shows... >> stay tuned. >> reporter: ...have kept him in the public eye ever since. in a new cbs news/"new york times" poll, 47% of republicans say they'd consider voting for huckabee, putting him second only to florida senator marco rubio, who tops our poll for the first time. rubio's former mentor, former florida governor jeb bush, slipped to third. huckabee argues that he took on the clinton machine in arkansas and could do so again in a general election. he saved his sharpest barb today, though, not for hillary clinton but for president obama. >> when i hear our currentt president say he wants christians to get off their high horse so we can make nice with radical jihadists? i wonder? >> no!tch >> i wonder if he could watch a western from the '50s and behe able to figure out who the good guys and the bad guys really are. >> reporter: huckabee's aides acknowledge he's going to have to broaden his base beyond

evangelicals to win which is why, scott, he began making a pitch today to seniors, arguing that unlike many of his opponents, he has no plans to tinker with medicare and social security payouts. >> pelley: nancy cordes in hope tonight. nancy, thanks very much. our poll also exposes a liability for the democratic front-runner, hillary clinton. when asked if clinton is honest and trustworthy, 48% of americans said yes, 45% said no. julianna goldman reports from las vegas. >> as secretary of state... >> reporter: this video featuring clinton's press a secretary brian fallon is the latest attempt to push back against the litany of distractions hanging over clinton's presidential bid from questions about her response to the 2012 benghazi attacks, use of private e-mail whileal secretary of state, and allegations of improper donations to her family's foundation. >> so while republicans are latching on to the most farfetched theories in an attempt to cut hillary clinton down, she's going to stay focused on helping everyday americans get ahead and stay ahead. >> reporter: the campaign's

efforts are timed to today's official release of the book "clinton cash." over the last several weeks it and other articles have raised questions about bill clinton's paid speeches and his relationship with wealthy donors to the clinton foundation, many of them foreign, and whether they expected anything in return from then-secretary of state clinton. bill clinton said yesterday that they've done nothing knowingly inappropriate. scott, hillary clinton has largely avoided addressing the controversies, and that's likely to continue here at her onemmig event, a roundtable discussion on immigration reform.an >> pelley: juliana, thank you. today, tech titans gathered to remember a man described as the biggest loss since steve jobs. and why are some boxing fans suing manny pacquiao when the cbs evening news continues.

>> pelley: man >> pelley: many of the techbe industry's brightest rememberedd david goldberg today. he was an entrepreneur and the husband of facebook's chief operating officer, sheryl sandberg. here's elaine quijano. >> reporter: more than 1,500 people turned out at stanford university in silicon valley for a private memorial for david goldberg. most of the men did not wear ties in keeping with goldberg's well-known disdain for them. c.e.o. of salesforce.com marcwa benioff was a friend.in >> by far the biggest loss since steve jobs. >> good morning.

>> reporter: a beloved and successful entrepreneur who pioneered how music is distributed online. goldberg died friday while on a family vacation at a mexican resort. local authorities say his h brother, robert, found him next to a treadmill.ay they say goldberg apparently slipped and fell and died of severe head trauma and blood loss. his death serves as a reminder that over 50 million people in the u.s. use treadmills, and over 24,000 visited the emergency room due to injurieslt in 2014, although treadmillxt deaths are extremely rare. since his death, the tributes have poured in online. president obama wrote on facebook, "his love for his family was a joy to behold, and his example as a husband and father was something we could all learn from." goldberg's wife, sheryl sandberg, replied, "thank you,rack president barack obama, for this beautiful tribute and for your friendship to our family." today, she changed the background picture on her

profile page to an image of her and goldberg. the local prosecutor's office says it has thoroughly investigated david goldberg's death. scott, mexican authorities are treating it as an accident. >> pelley: elaine, thanks very much. californians get an f in saving water. that's next. >> this portion of the cbs evening news

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>> pelley: state regulators say that californians badly missed their target for conserving water last month. a cut of 20 percent was the goal but customers saved less than four percent. emergency restrictions and hefty fines are now being considered as the his storveg historic drought drags on. >> two boxing fans in nevada sued manny pacquiao today, claiming he defrauded spectators and gamblers by not disclosing a shoulder injury ahead of saturday's fight against floyd mayweather. pacquiao lost the decision. today, it was reported he'll need surgery. well, emergency rooms get all kinds of walk-ins, but the staff at an e.r. in australia never saw this curious koala coming or going. after scoping out the empty waiting rooms, the koala walked through the automatic doors and on his merry, waddling way. chameleons might be called nature's artist, but i'll bet

you've never seen something like this.ry that story is next.

>> p >> pelley: the eyes never lie or do they? we end tonight with an artist who gives new meaning to "body of work." elizabeth palmer introduces us.gl >> reporter: at first glance what do you see here? a parrot, right? and here a chameleon, and a pile of bananas. but all is not as it seems. this is art as disguise. and this is the artist, johannes stoetter, master of body painting as camouflage. oh, no. >> okay, now it is perfect. >> reporter: it took two hours 10 pounds of bananas and some

paint to turn me into a fruit arrangement. but it's stoetter's animal creations that have brought him worldwide fame. a frog that turns out to be five interlocking humans. and have another look at that parrot. it's actually a woman, one arm crooked over her head and her leg sticking straight out. stoetter is self-taught, but he has a natural gift for analyzing and matching color, which he's here daubing on sara, the model, darting back and forth perfecting his most recent design. >> sometimes i feel as if something like a higher power is painting through me, as if i was just a medium. >> reporter: believe it or not body painting is a competitive event, and stoetter won the world championships in 2012. but he spends most of his time

in the area where he grew up, in the italian alps. >> nature was always a strong thing for me. my early childhood, especially i think that inspired me very deeply. >> reporter: stoetter's experimented with camouflage against various natural backgrounds, but it's these tropical animal images that have become online sensations. that chameleon? it's two sisters lying on a bench. and as for sara patiently posing in the studio, after six hours stoetter's brush has turned her into a fish. elizabeth palmer, cbs news sterzing, italy. >> pelley: liz finally goes bananas. and that's the cbs evening news tonight. u for all of us at cbs news all around the world, good night. captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.org

your realtime captioner is linda marie macdonald. now at 6:00 one of the bay area's hottest neighborhoods now a new look at the giants' billion-dollar waterfront plan. will it be a home run among voters? good evening. the giants mission rock development would fit just across mccovey cove at pier 48 a few blocks from the new arena the warriors want to build. simon perez shows us the giants' new neighborhood is getting early support. simon. >> reporter: indeed it is, liz. the giants held a press conference here this morning to make the announcement that its mission rock development plan is going to go before voters on

the november ballot. it's here that the team wants to build housing, retail and parks and from the looks of it, there is a lot of support. in the shadow of the stadium sits 28 acres of land that makes developers' mouths water. this is what's planned. opened space with views of the bay, a community square likened to what washington square park is in the city's north beach neighborhood; lots of mom and pop retail shops and industry; anchor steam wants to brew beer here. but development in this area is not easy. what's different about this project that makes it will get support when the warriors get so much opposition? >> we're talking about two different things. we are talking about a neighborhood here. so this is just -- we have been working on this for eight years. >> reporter: and indeed, that does seem to be the key. this project has been in the works for so long, warriors opponents aren't worried about mission parking and traffic.