Date: March 21st, 2018 6:30 PM Author: wonderful base doctorate
You have several locations where devices were planted. Assuming his cell phone was on, you just pull the records from adjacent cell phone towers and see which number appears across all the locations. Once they narrowed it down, they could then request the GPS coordinates of where his phone has been.
Date: March 21st, 2018 6:33 PM Author: odious public bath
Don't think so. I suspect they pulled cell tower data for when he dropped off the package at FedEx. Probably cross referenced with the return address he put on a fucking bomb.