bruce leshan live at the home of dick and joanie vilardo and police are looking at all possible sources tonight. >> reporter: at this point police simply do not know who killed the vilardos here or why. someone has left flowers out front. they have faded in the heat. three days after their children found them stabbed or cut to death investigators are still at dick and joanie vilardo's home. detectives are aware there may have been an attempted burglary less than a mile away in late february. one of the religions came home to find a -- residents came home to find a car halfway down the driveway and the possible burglar allegedly rammed the resident's car to escape. police have also been talking to land escapers who may have been working in the neighborhood before the murders. >> this is just 48 hours old and they're looking at everything right now or many things right now. >> reporter: the vilardos were out with friends at the hollywood casino saturday night and got home just before midnight, but if someone followed them home from charlestown, west virginia, why would they wait to sneak

the killer or killers stabbed or cut dick and joanie vilardo to death. >> reporter: at this point no idea who, no idea why the chilling murder of this beloved couple here simply does not seem to fit the patterns that usually help solve these kinds of crime. day three into the investigation into the stabbing murders of dick and joanie vilardo and the flowers left out front have faded in the heat. crime scene investigators are still walking the perimeter and searching inside the house in hopes of figuring out who killed them and why. crime profilers say stabbings and cuttings are usually crimes of passion committed by someone with a connection to the victims, but friends say the vilardos were not the kind of people who made enemies. >> every investigator has to be unbiased and look at everything as a possibility at the beginning of an investigation. >> reporter: the vilardos were out with friend at the hollywood casino saturday night and got home before midnight, but if someone had followed them home from charlestown, west virginia, why would they wait to sneak in through an unlatched

investigators were back at the home today where their children found dick and joanie vilardo cut and stabbed to death. detectives don't know if they were the victims of random burglary or killed specifically. police are telling neighbors secure your homes. >>> tonight at least 42 people dead, another 1,200 injured in a powerful earthquake that hit nepal. today's quake measured 7.3 centered east of the 7.8 quake that hit back on april 25th. 8,000 people died. meanwhile six u.s. marines and two nepalese soldiers are missing. their helicopter disappeared while they were helping with disaster relief. the crew had reported fuel problems. >>> we are happy to report members of the virginia task force one in nepal are safe and doing well. the team is based out of fairfax helping in the rescue and recovery efforts. engineers say the building they are staying in is safe. >>> maryland has a new law on the books aimed at improving the relationship between cops and the people they serve. governor hogan signed the measures today. they passed before freddie gray's death. one measure calls for a com

vilardo at their home in rockville. big preis investigated a burglary of that couple's home 17 years ago and he remembered that it might have been connected to scott tomaszewski, then a teenager next-door. tomaszewski facing murder charges in the vilardo killing and investigators say tomaszewski admitted to killing the couple during a burglary attempt according to our participates at the washington post. ma -- partners at the washington post. >> it was really heart warming to hear that i was able to contribute to something positive coming out of something that was so tragic. >> police arrested tomaszewski on saturday in juneau, alaska, where he was on a cruise with his parents. he is due in court there tomorrow for an extradition hearing. >>> late today we-ed the fbi found -- we learned the fbi found no ed that the windshield of that derailed -- no evidence that the windshield of that derailed amtrak train came from a firearm. an assistant conductor on the train 188 told investigators she did remember a radio conversati

. >> reporter: investigators released some new information about the murders of dick and joanie vilardo today. >> this was a burglary and they're still assessing what, if anything, was taken. >> reporter: a source close to the investigation said that's in part because detectives were faced with a large messy crime scene indicative of a violent struggle between the vilardos and their killer or killers. police won't release the initial 911 call made by a family member. captain starks called it too gut wrenching to listen to. just within the last few minutes we have seen more officers continuing to arrive on scene. we can hear them working around the back of the house, but they are still out there working just by flashlight. it could be a very long night, but a lot of people are hoping for some kind of break-through. garrett haake, wusa9. >> it's a break-through everyone is waiting for. the family scheduled a viewing for the couple thursday. the funeral will be on friday. >>> the springfield, virginia couple accused of plotting revenge by abducting and torturing a mclean couple will go to