This is the first episode I've seen. Are there rules stating that the perps have to talk to the investigators? If not, then STFU! for the whole 48 hours, no matter how much they cajole or goad you. This couple said all kinds of things that might have helped in the field.
The daughter was specifically told by her mom to say that mom had just been checking in on the kids (which of course would not explain the daughter's call-back), and then NOTHING else. So the daughter then begins answering questions, including overplaying how mom HATES the beach, which the investigators immediately picked up on as a clue, but didn't really follow-up very well.
At the time, I wondered if the GPS log wouldn't note that they stopped moving for N minutes at a particular place. I would have stopped at a light instead, had mom go plant the case while I drove around randomly, have her take a cab or planted car (even a bicycle would give a reasonable distance) to a designated spot where I could pick her up, and continue the random course. It's unlikely that they would think to, or have time to check all the cab companies, and much like the employee in the convenience store, unlikely that the cab companies would give out details for an unofficial purpose like this program. The investigators might be sharp enough to look for vehicles owned by the family in the vicinity of the GPS track, so just park in a mall parking lot and walk a few blocks to dad. Even if they find the car, all that does is give them an indication that the GPS track is likely useless as a direct indicator of the final location.
The daughter was specifically told by her mom to say that mom had just been checking in on the kids (which of course would not explain the daughter's call-back), and then NOTHING else. So the daughter then begins answering questions, including overplaying how mom HATES the beach, which the investigators immediately picked up on as a clue, but didn't really follow-up very well.
At the time, I wondered if the GPS log wouldn't note that they stopped moving for N minutes at a particular place. I would have stopped at a light instead, had mom go plant the case while I drove around randomly, have her take a cab or planted car (even a bicycle would give a reasonable distance) to a designated spot where I could pick her up, and continue the random course. It's unlikely that they would think to, or have time to check all the cab companies, and much like the employee in the convenience store, unlikely that the cab companies would give out details for an unofficial purpose like this program. The investigators might be sharp enough to look for vehicles owned by the family in the vicinity of the GPS track, so just park in a mall parking lot and walk a few blocks to dad. Even if they find the car, all that does is give them an indication that the GPS track is likely useless as a direct indicator of the final location.