There's a lot of truth to this, but note that she was talking on her landline at 10 pm, her cell phone and from what little has been said the friend's cell phone were the phones pinging. There's a lot we don't know.
There was said to be 11 pings identified. There's an implied two towers. (Which ping is right?) Was the time range of those pings arbitrary? Were they after the 10 pm call so focus is on what happened then? Was one of the two towers handling her condo area, for example, all pings before 10 pm (if any) were to same tower? Were none of the pings before 10 pm so that possibly pings obtained were from outside her condo range?
Of course the tower locations are known and also what the normal controlling tower for her condo area at that time. But we don't know that, hence the question. A typical scenario might be some pings before 10 to same tower, some time after 10 another tower was involved and then switched back, implying movement, and last pings of the two phones at whatever time was indicated, said to be between 10:20 and 10:40 pm.
The towers switching before phones went dead is an important indication. It makes it very unlikely that the phones were disabled in her condo and taken with her, more likely the phones were on when driving and then disabled. It makes for a very unlikely scenario to gather the phone from her condo to take with her, along with other stuff, drive some ways and then disable the phones within a few minutes. The phones would likely be on longer if the abductor was establishing a false direction before disabling the phones.
It has all the earmarks of Jennifer taking the stuff with her, driving not far, and being abducted where the abductor disabled the phones in her possession which an abductor with some knowledge would do. There may be a desire to say well if Jennifer didn't go out then someone forced their way in and abducted her, but the cell phone ping information doesn't support that.
