- Joined
- Jul 29, 2018
- Messages
- 11,149
- Reaction score
- 73,891
Can you tell me how this works? Do you mean that they compare the locations of known phones?
No not this. Just try to see what phones in general were findable in the area from say, 9 pm the previous day to 9 am the day of the murder. The killers might have had the phone "on" when driving by at 2 AM. I suspect they were new to Liz's neighborhood and needed some GPS help. I guess LE gets the data dump from the local cell towers.
Another thought - the killers could have switched the phone back on later. They have some choices as to the potential way out of the area, so maybe they needed the GPS after all? Like, if they went past the courthouse and on the lawn, as some imply, they could have switched the phone on there. Or any other nearby areas where the killers could have had questions as they were driving out.
I assume that they did not know the area that well so the moment they felt they were away from Liz's house they could have switched the phone on. This doesn't imply that they were totally nonlocal.
I am thinking: I know my town well, but there are some developments where I have never been to. "Sleeping areas". So, say, I can drive myself to a local school (in their case, it would be Goddard, a landmark), but how to get out through the older development past the school, I have a very vague idea. There are no stores there, no landmarks. Without the GPS, I'd probably intuitively drive North or East, to a bigger road, but I won't know where the cul-de-sacs or breaks in the streets might be. So I'll finally end up getting on a wider road leading N or E, but on getting there, I'd make a lot of lapses. Most of such neighbors are not "planned" but emerge as the developers buy the new land, so the streets have breaks, there are cul-de sacs, whatnot.
So the killers people can be local in terms of living in/around Houston, but not quite local to Tomball. Liz's area is a typical "sleeping" one, with few landmarks.
Goddard school had the cameras off but perhaps the internet was on? Could the cellphone "handshake" with it? Or "shake hands" with the home networks on the car's way, or maybe with the B's "nest" camera at night?
Another place where they could have switched the phone on could be several blocks away when they passed the courthouse if I remember correctly and took a shortcut via the lawn? (I saw the movie a while ago, this is the version when they pass the courthouse and end in the cul-de-sac and the easiest way out to the large road is to drive on the ground? Maybe they went that way? This is far enough and a logical place to switch on the GPS). See what phones were "speaking" in that area in the morning via a towers data dump. Maybe if any "shook hands" with the network in the courthouse?
Also, how old was the car? Did it have the GPS? Or, could they have used something like an older Garmin? Is should be identifiable?
I hope LE got the local towers data dumps. I think that the way humans think, once a person feels that they are away from the CS, but time to get out of Tumball is the essence, one may feel safe to switch on the cellphone. And during the nighttime reconnaissance trip when they passed the house, it was before the crime, so they could have left the cellphone on. Or the car's navigator, or the Garmin.
Last edited: