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nbc news antonia hylton has more on how the app works, and what the company is doing to help law enforcement. tonight, car rental app turo under new scrutiny. oh my god. after authorities say it was used in connection with the deadly terror attack in new orleans and the cybertruck explosion in las vegas. the peer to peer rental app is similar to airbnb, allowing users to rent a vehicle directly from an owner rather than a car rental company. you could get the keys to vacation success. users can meet car owners in person to pick up the ride, or organize a remote handoff, in which renters code or the app. why do youbox think someone would seek out an app like turo over more traditional companies like, say, a hertz? i think it makes it a little bit more anonymous. so when you go to a place like hertz or avis or or budget one, you're probably in an airport. they're going to be a ton of cameras around. everybody is going to see you. they have access to data streams that maybe an app like turo does not. turo, confirming its platform was used to rent the ford pickup truck that plowed through new or

antonia hylton has the details. >> reporter: car rental app turo under new scrutiny. >> oh, my god. >porter: after authorities say it was used in connection with the deadly terror attack in new orleans. and the cybertruck explosion in las vegas. the peer-to-peer rental app is similar to airbnb. users can meet car owners in person to pick up the ride or organize a remote handoff in which renters unlock the car using a lock box code or the app. why do you think someone would seek out an app like turo over more traditional companies like, say, a h hertz? >> i thihink it makes it a litt more anonymous. when you go to a place like hertz or avis or budget, one, you're probably in an airport. there are going to be a ton of cameras around. everybody's going to see you. they have access to data streams that maybe an app like turo does not. >> reporter: turo confirmingity platform was used to rent the ford pickup truck that plowed through new orleans' bourbon street early wednesday morning and the tesla cybertruck that was filled with explosives outside trump international hotel in las vegas. a

nbc's antonia hylton reporting from philadelphia, and nbc meteorologist bill karins is here with me. it just looks cold where you are. but what kind of impact are we seeing from this winter storm. >> reporter: it's a little chilly. thankfully i don't have snow piling up on my neck like i did a little while ago. we are looking at a couple of inches piling up on the ground. in some parts of this region, as much as a foot. in kansas, more than a foot of snow in some cases. if you don't have to be on the roads, necessary errands or a job you have to work for in person today, experts say you might want to avoid going out there and it's even worse if you are planning to travel by plane today, especially if you're in the dmv area, in dallas and missouri, that's where we're seeing a lot of trouble with flights. we're at almost 5,000 delays today, and almost 2,000 cancellations. just here on the ground in the city of philadelphia our team has been here all day, on some of the roads that aren't cleared quite as well, we have seen cars slipping and sliding in some cases. that's what's to expect

joining me now is antonia hylton. what are we learning about livelsberger?te, we learned yesterday from a presser that he's believed to have died from a gunshot wound to the head moments before the explosion that we've all seen there in front of the trump building in las vegas. we also know now that he rented this car in colorado. he's from colorado springs. has a wife and baby according to neighbors there who said they had nothing but normal interactions with him. they liked his family. liked his wife. he took the car from colorado, filled it up several times on the drive to las vegas before turning into that valet area in front of the building there. our team also reached out to the peer to peer car rental company that's at the center of this case and the new orleans case. we tried to understand the potential liability, what they may or may not have known about the two people who rented these cars. what they told us about livelsberger is that basically their records were clean. there was no criminalhistory that would have surfaced during their security che

joining us now, nbc news correspondent antonia hylton who is with us from philadelphia. onia, it's a big storm and very cold. what should we expect? >> reporter: well, the good news is the storm is actually right now on its way out. we've got a couple of inches here in philly, but by 12:00 a.m. or so, that system is going to be over the atlantic ocean, if you're in kansas or missouri or closer to the middle of the country, you are seeing more than a foot of snow in parts of pennsylvania like seven springs, they have about 10 inches, and so it really varies, but even in areas like philly here, where there's maybe 3 or 4, the roads were incredibly dangerous earlier and so the philly schools have been out all day to keep kids and their families safe. and the roads aren't the only problem, in fact, the airport here in philadelphia had a ground stop for a while this afternoon, flights weren't able to take off. if you're in the dmv area in dallas or missouri, they're still having some trouble. in fact, we're at about 5,600 or so delays, and almost 2,000 cancellations and that n

. >> ana antonia hylton, thank you for your reporting. to note that american airlines has set up a toll free number for people who may have had loved ones on flight 5342. you can see it there on your screen. that number is one (800) 679-8215. the recovery efforts continue right now in the frigid potomac river. this is what d.c. fire and ems chief john donnelly said about the conditions rescue crews faced overnight. >> the water that we're operating in is about eight feet deep. there is wind, there is pieces of ice out there, so it's just dangerous and hard to work in. and because there's not a lot of lights, you're out there searching every square inch of space to see if you can find anybody. the divers are doing the same thing in the water. the water is dark, it is murky, and that is a very tough condition for them to dive in. >> joining us now, tim taylor, ceo of tiburon subsea, which specializes in underwater robotics and ocean technologies used in underwater rescues and recovery. tim, at this stage in the operation, we're about 15 hou