If he had been assaulted and killed I think his phone and maybe even the truck would be missing too.
I think Bryce was with the car. If it were some assailant, I could see leaving the phone, but they'd take the laptop for sure, and wallet if it had any money or credit cards (see my response on money below). If Bryce assumed he was coming back to the car (or assumed he wasn't), he might leave his things in the car.
But since the SUV was shown on camera 1 minute after Bryce's last call to his mom and he didn't give any indication of a problem (other than he was tired), than we have to assume either Bryce was the driver or, at least, it was Bryce's choice to have this person driving his car.
Which means Bryce was most likely driving at the time he was speaking to his mother. This could be the reason he turned around the first time, he was sidetracked by speaking to his mother, and didn't originally intend on going that far or that way.
I am not convinced that he spent 17+ hours in Buttonwillow sleeping. If he did, why would he then be so exhausted after only driving an hour and fifteen minutes to Castaic that he would have to pull over and sleep some more? (Laguna Niguel, if you believe he was really heading there, was only an additional hour and a half away.)
I am having trouble following the reports. Originally it was reported that he ran out of gas at the Buttonwillow rest stop. He ran out of gas at 9:00am, but the guy with the gas didn't arrive until 12:00pm (3 hours-seems like a long time). If he got back on the road at 12:30, , he'd have arrived at the TA Travel center (on Lagoon drive) around 12:45. Or he might have tried to sleep some more at the rest stop before heading to Buttonwillow proper. If he left Lagoon Dr. around 11:00 PM ish, he was there for around 11 hours or less. Fill up gas tank, use facilities, maybe grab something to eat would take around an hour to 2 hours. 8.5-9.5 hours unaccounted for. He may have tried to sleep, and didn't get much due to comings, goings, heat, light, etc.
This: “Sergeant Wallace called and said the vehicle had crashed and was on its side. It had gone down a 15-foot ravine,” she said. “It went nose first and landed on the passenger side. Bryce has used an emergency tool to break the back window.” Totally contradictory to YellowCamaro's assessment which sounds solid as a rock to me... how odd.
Sgt Wallace was replaced with some other LE. That tells me a lot.... But again, an emergency tool leaves a distinctive pattern when used. I wonder if what Yellow Camaro saw could be correct, but with going forward? Stuck with the rear wheels spinning, but trying to back up the hill, while the nose was pointing downhill?
How did he pay? I am guessing he had very little money.
Or possibly he was using his card and saving his cash for when he ended up places that only take cash. I do that on trips all the time. You end up at JoeBobs gas station in the middle of nowhere because your fan belt gave out and by George, JoeBob only takes cash. Bryce may not have been that savvy, but maybe he was.
If the above is correct and he left Buttonwillow at 11pm it took him 3 hours to make the 1.25 hour drive down to Castaic.
If his mom kept calling every hour, legally he'd have had to pull over to talk to her (unless he had a hands free thing going in his car). It could take that long if he did. There is also a rest area at Frazier Park (Lebec?) at the top of Grapevine hill, he might have stopped there for a bit. That's a bit odd; if it had been by itself, not so much, but with everything else...maybe.
She spoke about it on the John and Ken show on KFI640 radio (I am looking for the audio of it) and Dragracerz posted the following on September 5th:
"Could be ? I don't know if it is in the timeline or not, but the road service driver showed up with gas and Bryce wasn't by his car, the driver left and Bryce called back immediately requesting gas, the driver turned around and brought him 3 gallons of gas.
My sister was notified of the road service via text (survey on service) and called and actually talked to the driver while he was with Bryce. He said he didn't see him when he first got there and maybe Bryce was sleeping, Bryce was listening to the conversation and butted in, "Yeah, I was sleeping"
Okay, I don't know if the driver looked in the car when he first got there and left OR if he did and Bryce wasn't in the car ???"
BBM: If I were him, I'd have been sleeping in the back of the car. I'm pretty sure you can put down the back rows of seats and have a pretty flat spot to sleep in. The back windows are usually tinted, so the road service guy might not have seen him. Most people waiting for gas are standing outside the car, chomping at the bit to get going. I can't imagine anyone sleeping anywhere outside in the Buttonwillow rest stop, but there are covered picnic benches for shade.