welcome to "world news tonight." the breaking headline about the santa fe school shooter. sources telling abc news the gunman studied previous mass shootings. the trenchcoat he wore, the alleged homemade bombs he had, clues he may have been inspired by columbine as a service is held for the first of ten victims. also breaking tonight, president trump now demanding the justice department investigate whether the trump campaign was infiltrated for political purposes. also, is a major part of the mueller investigation involving president trump about to end? the new toxic threat tonight in hawaii as kilauea's lava flow collides with the waters of the pacific and the first injury is reported. a homeowner struck by molten rock. the deadly cougar attack. one mountain biker mauled.

the wildcat then turning on a second victim, who did not survive. the race to find and stop that dangerous animal. path of destruction. heavy rain triggering a fatal mudslide. a passenger plane skidding off a runway in slick conditions. tonight, the severe weather now on the move. and good evening. thanks for joining us on a busy sunday night. i'm tom llamas. we begin with chilling new details about the gunman in the santa fe school shooting. sources telling abc news 17-year-old dimitrios pagourtzis studied other school massacres before his attack. investigators also keying in on a trenchcoat worn during the massacre, and evidence of explosives, both hallmarks of the columbine killers. the community in a state of shock and grief. services beginning for some of the ten victims, and the governor of texas ordering a

sta statewide moment of silence tomorrow morning. and lawmakers being pressed about what, if anything, will be done to stop this from happening again. abc's marcus moore lieds us off from santa fe. >> reporter: this new video obtained by tmz shows dimitrios pagourtzis dancing during a greek festival the weekend before he allegedly walked into the santa fe high school with a pistol, shotgun and improvised explosives, authorities say. they are poring through his journal and believe he studied previous shootings and allegedly incorporated aspects of the columbine massacre. authorities say he wore a trench coat, which was a hallmark of the columbine master. tonight, unimaginable grief. sabika sheikh, a foreign exchange student, just days away from returning home to pakistan, today remembered in texas. elsewhere, vigils to honor the victims and their families and support the wounded as we learn new details about the days leading up to that horrific

shooting. so many lives lost. glenda perkins and cynthia tisdale, two teachers killed at santa fe high school. chris stone, aaron mcleod, kimberly vaughan, ham ram -- and shana fisher, some of the students killed. and tonight, fisher's mother saying her daughter was a target. >> not even a week later, he just shoots everyone. >> reporter: the suspect's attorney says any talk about what led to the shooting is pure speculation. and while investigators try to figure out a motive, texas lieutenant governor dan patrick reigniting the debate over gun violence saying that guns are not the problem. >> we have devalued life, whether through abortion or the breakup of families, through violent movies, and particularly violent video games. >> reporter: what is clear tonight is this community continues to rally. john barnes, the school police officer critically wounded, but called a hero for bravery recovering tonight.

and rome schubert shot in the head, returning to the baseball field this weekend. >> marcus moore joins us live from santa fe high school. we know that school will be closed tomorrow. you mentioned the possible copycat nature with the columbine attack. and besides the black trench coat there is another chilling connection? >> reporter: that's right. investigators said the gunman in this case used various homemade explosives like co2 cartridges. that's significant because that type of explosive hasn't been used in a school shooting here since the columbine massacre and certainly as to the many questions investigators have about how this attack was carried out, tom. >> marcus moore reporting live for us. marcus, thank you. we turn to the breaking news from the white house, where president trump made a stunning demand on twitter. the president saying he will officially order the justice department to investigate whether an informant working for the fbi or doj infiltrated the campaign suggesting the obama administration's involvement. at the same time, rudy giuliani,

the president's personal attorney, revealing a possible end date for an aspect of the russia investigation. here's david wright. >> reporter: tonight, president trump on the warpath, demanding answers about reports that the fbi had an informant approach the trump campaign. quote, "i hereby demand, and will do so officially tomorrow, that the department of justice look into whether or not the fbi/doj infiltrated or surveilled the trump campaign for political purposes." president trump has long insisted he has the right to intervene. >> you look at the corruption at the top of the fbi -- it's a disgrace, and our justice department, which i try and stay away from, but at some point i won't. >> reporter: at issue now, published reports that during the 2016 campaign, the fbi sent a retired american professor to talk with several key trump advisers after those advisers had been flagged for suspicious contact with russians.

trump's fbi director, citing national security, has declined to reveal any details. >> the day that we can't protect human sources is the day the american people start becoming less safe. >> reporter: tonight, the justice department says it will investigate. deputy attorney general rod rosenstein vows to take appropriate action if anyone did infiltrate or surveil a presidential campaign for inappropriate purposes. >> i've always said there was no collusion, but i've also said, there has been nobody tougher on russia than me. >> reporter: russians may not be the only foreign interests trying to meddle. there are also published reports of another suspicious meeting at trump tower. an israeli social media entrepreneur, a representative of two wealthy arab princes and the founder of the massive private security firm blackwater reportedly met with don junior three months before the election to discuss mounting a social

media campaign to help elect donald trump. don trump jr.'s lawyer tells abc news, "he was not interested and that was the end of it." today, the president tweeted the witch-hunt has given up on russia and is looking at the rest of the world. >> all right, david wright is at the white house for us. david, late word from rudy giuliani telling abc news that the russia investigation relating to president trump will be done by september 1st? >> reporter: that's right. an important distinction, they were talking about the part that relates to trump, not necessarily the whole investigation. giuliani saying mueller told him that personally about a month ago, but mueller has not independently confirmed that, hour. the president's team is clearly pressuring him to wrap it up. tom? >> david wright with that new reporting from the white house tonight. david, thank you. next to a major development in the hawaii eruptions. the first lava flow now reaching the pacific throwing a toxic blend of lava haze into the sky. officials also confirming the first injury. a homeowner standing on his

balcony struck by flying molten rock. it's a dangerous new chapter in hawaii and abc's marci gonzalez is in hawaii. >> reporter: tonight, that raging molten river now flowing into the ocean creating a new danger. the lava combining with saltwater, creating plumes of what's called laze, a hazy potentially deadly mix of hydrochloric acid and small particles of glass. >> it can eat a hole in a cotton t-shirt in a matter of a couple of hours. it's really caustic. and, of course, you don't want to be breathing this either. it can cause a respiratory seizure. >> reporter: the red-hot torrent now flowing across a highway forcing new evacuations, after destroying four more homes this weekend. that lava flow cutting a path through neighborhoods and fields, bubbling from fissures like this one, fountaining more than 100 feet in the air. and this explosive fissure, blamed for the first serious injury since this volcanic emergency began on hawaii's big island more than two weeks ago, blasting a chunk of molten rock

towards a house, shattering the homeowner's leg as he sat on his balcony. he's now recovering in a hospital. tonight, geologists say they still expect more fissures to open, the flow of lava into the ocean to expand and possibly more eruptions from the summit of kilauea. tom. >> we can see some of that haze behind you. marci, thank you. next tonight, the severe weather threat. a woman was killed during a mudslide in north carolina, one of the parts of the shouldn't swamped. here's rob marciano. >> reporter: tonight, funnel clouds spinning above central texas with three tornadoes reported north of austin. >> that's going to touch the ground in a minute. >> reporter: and off the coast of alabama, a waterspout churning near dauphin island. and severe storms tearing across oklahoma, littering this neighborhood in fairfax with debris. >> i heard a big boom and that thing was against my car.

>> reporter: floodwater for as far as the eye can see in farmville, virginia. the wet weather causing this plane to skid off the runway at bluegrass airport in kentucky. >> you hear the sirens. and you see everything going. and it was pretty scary. >> reporter: torrential rain flooding entire neighborhoods in maryland. dive teams brought in to pump this road in washington county. and heavy rain flooding streets in boulder, colorado, and turning roadways in south florida into rivers. the spring storms turning deadly in north carolina. a polk county woman killed when her home was crushed by a mudslide. >> all right. let's get right to rob. he joins us live in studio. as we look at the map tonight, there's a lot going on. >> busy again and obviously the soil saturated, especially across the southeast. watches posted for missouri and tennessee. and storms moves across houston, and the rains continuing tonight across florida. some severe weather, storms to chicago by tomorrow morning. severe threat looks like it will

impact indiana and parts of ohio during the day tomorrow. strong winds, hail, maybe an isolated tornado. that's into tomorrow morning. across much of the southeastern third some heavy rain in the next 48 hours from ohio to miami. >> rob, thanks. we want to turn to a developing story we've been following. a saturday night jailbreak in south carolina. three men on the run, two of them accused murders. and now police say they assaulted a guard as well. zachary kiesch with the manhunt. >> reporter: tonight, an urgent manhunt. police in south carolina frantically trying to track down three fugitives. >> we know that these individuals are dangerous. >> reporter: authorities say someone attacked a guard and they then broke out of this detention center southeast of charleston late saturday night. >> our officer was assaulted at the jail. i think during the assault, they had already apparently had this planned. >> reporter: overnight, law enforcement, suiting up and scouring the area. helicopters searching from high above. christopher boltin, accused of

carjacking, curtis green and tyshon johnson, wanted for murder. all three were in lockup and waiting to go to trial. police now saying the manhunt extends beyond south carolina. >> we just advise people to be vigilant and to make phone calls. call us if they see or hear anything. >> reporter: tom, an escape from the same jail last june was blamed on a door lock malfunction. in that particular case, eight hours later authorities captured the man. tom? >> zachary, thank you. new questions in the wake of the deadly cuba plane crash. investigators looking into complaints against the mexican charter company that owns the plane, as well as the condition of the 39-year-old plane. a black box has been recovered. 110 people were killed. several victims have not yet been identified. you can see some of the coffins being lowered there. incredibly, three passengers survived. now to washington state, where authorities are

investigating a deadly animal encounter. two mountain bikers were attacked by a cougar. one did not survive. here's will carr. >> reporter: tonight, one dead, another lucky to be alive after authorities believe this mountain lion viciously attacked both. >> sounds like the gentleman was attacked by the mountain lion. >> reporter: the two mountain biking on a remote trail outside seattle when the mountain lion pounced. >> one of the victims heard a scream from his partner and he looks back and sees that they're being chased by a cougar down the trail. >> reporter: the survivor isaac cedarbaum offering a terrifying account of the attack. >> he said he had his whole entire head in the jaws of the animal and was being shaken around very, very horribly. >> reporter: the panther let go, sparing his life but taking aim at the other biker, who ran into the woods. >> we have a second patient probably another five miles up north fork road was being attacked at the time that our patient got away. >> reporter: the medical

helicopter raced him to the hospital, and authorities found the other man dead, this mountain lion standing over his body. they quickly shot and killed the animal close to where steve mickle captured footage of a mountain lion several weeks ago. >> it was kind of scary. i realized that, wow, there are things out there that are very powerful and this is their space and you just have to respect that. >> reporter: tom, the survivor is expected to recover. it comes as authorities are emphasizing attacks by cougars like this are extremely rare. they say if you come across a cougar, the best thing to do is stand your ground. scream, fight if you have to. the one thing you don't want to do is run. tom? >> but, again, those attack, as you said, are rare. will, thanks so much. and there's much more ahead on "world news tonight" this sunday. things get physical during a showdown on a packed flight. did a service animal set off this passenger brawl caught on camera? plus, the deadly attack raising many questions tonight. police say a man rammed a restaurant with his car.

and the day after the wedding seen around the world. new details on the after-party behind closed doors. and take a close look. the glimpse of the newlyweds. can you see them? stay with us. when allergies occur, day... ...after day... ...after day. because life should have more wishes and less worries. feel the clarity and live claritin clear. for one week only, save up to $16 on select claritin products. check this sunday's newspaper. if these packs have the same number of bladder leak pads, i bet you think bigger is better. actually, it's bulkier. always discreet quickly turns liquid to gel, for drier protection that's a lot less bulky. always discreet. with recurring constipation and belly pain if you feel like you spend too much time in the bathroom

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matthew silvay with his wife hazel standing next to him, both of them are deaf. silvay confronts timothy manley and his family, even kicking manley, who is in his seat. >> sir, please. >> reporter: in a report filed by the orlando police department, silvay says manley punched his great dane service dog and his pregnant wife after the dog awoke and stood up. >> you touched my dog. >> reporter: that's a charge manley denies. >> my wife right next to me has allergies to dogs, and i had to push the dog away. >> reporter: airlines have recently been trying to get a better grip on how to handle service animals on flights. delta, united, and american all recently changing their policies. tonight, the owners of the service dog want charges filed. frontier airlines say police were immediately notified to try to de-escalate the situation. police have referred this to the fbi. tom? >> a very complicated situation there. up next right here when we

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overseas now, with more of what went on behind closed doors after the royal wedding. fireworks outside historic frogmore house where an inner circle of celebrity guests and the royal family danced the night away. the bride reported to have made a speech, breaking with tradition. and this newlywed sighting today. it's hard to see, but police say meghan and harry arrived back at kensington palace in the back seat of that car with william and kate. the american bride's wedding bouquet now placed at the grave of the unknown warrior. and back here at home, and a landmark moment for a georgetown grad. linebacker ty williams taking his first steps since a devastating tackle left him paralyzed back in 2015. fighting hard to come back from those injuries. walking again for the first time to get that diploma. that crowd roaring in approval. and when we come back, the wedding you haven't heard of. and the major hurdles that bride and groom had to overcome. the story behind this video, when we come back.

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we've heard a lot about the royal wedding this weekend. tonight, the story of another american bride. when a big storm rolled through the big easy this weekend, rain, hail, and wind flooding the french quarter where catherine scott and shawn dunham were to be married. >> the main we were expecting was not really what we were expecting because it was basically like a monsoon. >> reporter: it got so bad, the wedding venue, the famous preservation hall took on some water. >> right around the time of the ceremony, it was at its absolute worst. >> reporter: then, a minor flooding hazard dramatically changed the choreography of the

wedding. you've heard of walking down the aisle. at her wedding she had to be carried down the alley. the groomsmen lifting the bride over the water so they could be married. bride and groom finally united married and now dancing together. >> i had the dress, i had the ring, i had the man and that's all that matters in the end. >> reporter: catherine and shawn had planned for a low-key wedding. instead, getting a memory they will never forget and telling us they know they can weather all challenges together. >> the irony of planning a small wedding, then for it to be on the news is kind of insane. >> prince harry and meghan don't have anything on us. >> we thank them for sharing that unforgettable moment and we thank you for watching. i'm tom llamas in new york. have a great evening. good night. ring that moment. i'm tom llamas in new yo thanks so much for watching. good night.

preacher upset over his changing community is forced to step down after using language that is not his sunday best. a late night demonstration to protests or confrontation. >> wind is picking up knocking down trees across the bay area. >> abc 7 news at 6:00 starts now. live where you live, this is abc 7 news. >> good evening and thaupg for joining us. >> i'm dion lim. the strong winds are causing problems in the bay area with three trees coming down three times in san francisco. >> in martin ez. cruise are working to remove the tree but not clear how long it will take. >> visitors were disappointed today national parks service

tweeted it closed lighthouse stairs because of strong winds. let's get to drew tuma. >> the winds have been active today and for the past several days. peak wind gusts a lot of us seeing winds in excess of 30 miles per hour. 55 miles per hour from concord, oakland, san francisco 30 to 35 miles per hour. san jose seeing winds close to 25 miles per hour. so future tracker wind gusts, winds will recede a bit early tomorrow morning but pick back up tomorrow afternoon gusting up to 20 miles per hour at times. look at when the winds relax across the region and warmer weather on the way in a few minutes. oakland locals today hosted a huge barbecue dubbed barbecuing while black in response to last month's incident when a black woman was caught on cell phone video calling police on