Stingray Tracking Devices: Who's Got Them?
Cell-Site Simulators/IMSI Catchers
US Marshals Airborne IMSI Catchers
Rather than wildly speculate, I'm going to speculate in a somewhat reasoned manner.
A "Stingray" is what's called a Cellular Site Simulator. It's a "man-in-the-middle" device that acts just like a cellular phone tower, often called an "IMSI Catcher." With some very rare exceptions, the IMSI of a cellular phone cannot be changed. You can change the SIM card, switch service to a different provider, replace the entire operating system on the phone with something custom, and it still will not change the IMSI that is written to a read-only memory chip on most phones.
These devices do more than just capture the IMSI of cellular phones that are connected to it, but at the end of the day, once LE has an IMSI and an APN (Access Point Name that is a gateway into a specific cellular system), they can issue a warrant to the company behind the APN (T-Mobile, Verizon, etc) to get a comprehensive list of everywhere that phone has been, every call, SMS or MMS that was placed and to whom, how much data was used, which sites they went to on the internet (DNS lookup records), and a bevvy of other pieces of crucial information that can aid in a manhunt.
According to the ACLU, Florida local law enforcement and state law enforcement have Stringray devices they can deploy. The FBI and the U.S. Marshals Service also have this technology.
Here's generally how it's deployed: Do you remember when they were using an airplane instead of a helicopter to run tight circles around the Reserve? Stingrays are almost always in an airplane instead of a helicopter (for what reason, I do not know), and they fly over and capture all of the cellular traffic from the area over which they are circling.
My measured and reasoned speculation is that they have captured an IMSI of either a phone known to be BL's, or that the IMSI matches up to a pre-paid phone that was only very recently activated, meaning the cellular provider has only seen that IMSI on their network since, say...early September, and that can be traced back as sold to him along his route home or possibly purchased in North Port.
Alright, enough of that. Time for some wild speculation. I think BL is still alive, I think people underestimate his survival skills, and I don't think he's in North Port or the Reserve. He sure has a predilection for hitchhiking, though, so would anyone be surprised if he hitched a ride with some random person and is gone?
MOO