this was murder. >> who would want randy baker dead? questions for randy's loved ones reveal a dark time from his past. coming up -- >> i was -- just thought maybe, just possibility somebody got released. >> when "dateline" continues. we're carvana, the company who invented car vending machines and buying a car 100% online. now we've created a brand-new way for you to sell your car. whether it's a year old or a few years old. we wanna buy your car. so go to carvana and enter your license plate answer a few questions. and our techno wizardry calculates your car's value and gives you a real offer in seconds. when you're ready, we'll come to you, pay you on the spot and pick up your car, that's it. so ditch the old way of selling your car, and say hello to the new way at carvana. [ "the addams family" theme playing ] ♪ they're nice but irritating ♪ ♪ their excitement can get grating ♪ ♪ they're dressed for pastry baking ♪ ♪ the progressive family ♪ ♪ they're helpful but annoying ♪ ♪ they always leave us snoring ♪ ♪ accidents are boring with

cnn's randi kaye is in wyoming retracing some of their steps. >> hi. my name is miranda bakerh, my boyfriend and i picked up brian at grand teton national park at 5:30 at night. i'm hoping this can help someone identify him. >> reporter: that's miranda baker sharing her story on tiktok on social media about how she believes she and her boyfriend picked up gabby petito's fiance, brian laundrie, when i was hitchhiking. >> he approached us asking us for a ride because he needs it to go to jackson, which we were going to jackson that night. i said hop in. he hops in the back of my jeep. we then, you know, proceeded to make small talk. >> reporter: she says the chance encounter happened on august 29th, five days after gabby last facetimed her family. miranda says before he got in her jeep, the man offered to pay her $200 for the ride. she says he offered this explanation for what he was doing out there on his own. >> he then told us he's been camping for multiple days without his fiancee. he did say he had a fiancee, and that she was working on their social media page back at their

baker picked up this man. so of course, we don't know the connection. but that is certainly an interesting note that she made in her tiktok video, john. >> randi kaye for us on the scene. one-half of this story, randi kaye, thank you very much. >>> let's now go to cnn's leyla santiago in venice, florida, not far from where police have been conducting a search for brian laundrie. leyla, what's the latest? authorities -- do they think they are any closer to finding him? >> reporter: well, john, the teams have ended the search for today. but here's what we noticed for sure. we saw much of what we saw over the weekend. right? the atvs, the choppers. but just more of them. more k-9 units. more resources being poured in here. the fbi clearly taking a lead. as for are they any closer to finding them? this is a process of elimination for them. they -- they didn't have anything of note today. but at least they are ruling out where he is not. and -- and remember, this is a vast area. lots of wooildlife here. very swampy area. so every time you see crews coming out of that gate from searching inside this reserve that is 25,000 acres, you can tell the tough terrai