You can find online websites that will (claim to) show ALL cell towers in a city - and when you view Vegas, it's like a Christmas tree lot.
You will see many towers that are not AT&T, but you won't know who they belong to. And if they're "generic", only the equipment would be registered with the FCC. Then there's the ones on the trailers.
With all of the possibilities involved in a cell connection (and him being "roaming"), I really don't think we can "track" his movements that way.
I'm not sure I agree with you, laytonian. Sure, there are a lot of different factors that go into whether a cell phones hits off this tower or that one. And none of us here are experts. And I realize there are all sorts of maps online where I could have gotten the information but I wanted to check out the actual area where he was for myself. I know the area well but never really paid attention to the cell towers until now. As a local, who has been all over these streets, I think we may be on to something here. What REALLY sticks out to me is the Pecos ping from early in the morning. I'll tell you why.
If you do a search for an ATT Tower on Pecos, it says there are none. So, it must be somebody else's tower. . .VErizon, T-Mobile, whoever. Well, Pecos, just the road itself, sticks out to me because it is to the far east in Las Vegas. And it runs south not far from the Whitney Ranch area. But, I have a totally different take on the Pecos hit.
I look at the ping after it, the one at Bermuda and Cactus. Now that one is near the 15 and several miles to the West of Pecos Rd. They are no where near each other. Also, in sea level terms, Pecos is much lower than the I-15and Bermuda and Cactus streets. So there is absolutely no chance that Steven was still on Pecos and picked up a signal from Cactus/Bermuda. And that confused me. Why would he be WAY East early in the morning, come back the other way to the Cactus/Bermuda area near the I-15 and then go to SCA. Sure, he may be just driving around but. . .
But, then I noticed something. FOREVER, we have been wondering where Steven spent the night between the 12th and 13th. Well, it just so happens that Pecos if you follow it north runs into Craig Rd. up in North Las Vegas and the largest truck stop in Las Vegas is there. It's a Pilot Truck Stop. Is that a coincidence?
See the I-15 for a long time runs parallel to Pecos but eventually the I-15 curves and it and Pecos almost meet up. And as a local I forgot all about that. Well, I knew it, I just don't go up that way much.
Follow me here. . .is it not possible, and maybe probable, Steven drives down from St. George that night. He gets tired. He pulls off the highway in North Las Vegas at that truck stop at Pecos and Craig. Very, very logical thing to do. The next morning, he gets woken up by his phone ringing. And the antenna that is being used is one right there at Pecos and Craig. It would probably be a powerful one since all the truckers stay there and talk.
So, it's GW on the phone. They talk. Then, Steven goes inside cleans up. Does this. Does that. Then, two hours later he simply gets back on the I-15 heading to SCA. Then, the next ping hits him on the I-15 when he is near Bermuda/Cactus since he is headed to the St. Rose Parkway exit which is in far south Las Vegas. And that is on his way to SCA.
See, this would keep his movements fairly logical. Otherwise, if we think that he was somewhere way down on Pecos east of the I-15, we have him driving all over the place. But, I think my explanation fills at least a few holes: Where he spent the night and where was he exactly when GW called.
Think about it.