Forensic examination of GBC's phone shows it was connected to a charger at 8.29pm on thurs 19 April. At 8.45pm it was removed from the charger. At 12.30 am his phone was used to make a facetime call to NBC's iPhone. At 1.48am on Friday 20 April it was connected to a charger. At 6.18 am it was removed from the charger. First text sent to Allison at 6.20am.
I am in no way good with technical stuff, but I would guess that connected or disconnected to a charger really means connected to or disconnected from a power source. The charger itself is not a power source but a means of obtaining power. So bearing this in mind can we interpret the above like this:-
8.29 connected to a power source, possibly in a car, to a computer or a power point at home or elsewhere.
8.45 removed from whatever that power source was. It was only charging for 16 minutes. Maybe it was charging in the car during a quick trip in the car somewhere. Maybe a drive through kenmore roundabout to get petrol or milk or some errand that only was a 16 minute drive one way? Or maybe he was at home and made a call, text or email or used the internet so he took it off the charger and didn't put it back on?
1.48am connected to a power source after 5 hours being off the charger. If that power connection was in the car then when he stopped the car it would have shown as being disconnected from the power source. But that wasn't shown until 6.18am ( 2 minutes before his first text to Allison at 6.20 am). So either he was out in the car with the phone charging or perhaps in a car with phone attached to a computer using its battery power source ( unlikely) for a bit under 5 hours. Or he could have been out then come home and left the phone in the car on the accessories with the key remaining in the ignition and then turned off the car and unplugged the phone at 6.18. ( unlikely) .
I say unlikely because I think the last thing he would have been thinking was the record on his phone of it going on and off a charger. He like most of us wouldn't even know his phone kept a record of that and he never thought he would be a suspect and have his phone forensically examined.
So I think it likely that he was at home at 1.48am and put his phone on the charger to a power point. It stayed there til 6.18 am when he removed it from the charger and texted Alison. So if he went out after 1.48 am he didn't take his phone with him because he would have had to remove it from the home charger to do that. More likely it is that he was aware that his phone location could be tracked by an app so he didn't take it with him to dispose of Allison's body.
So if he had no phone in the car with him and if he had another car helping him, then communication would have been a bit difficult between vehicles. Maybe they stopped say at the Anstead shops for a chat?
I would be interested to hear what anyone else thinks about all this stuff.
Thanks alioop, this makes sense - of course the phone must have stayed connected until 6:18am which to me means it is unlikely to have been charged in the car.
I think a very interesting aspect in all of this is also Allison's phone, whether it was used and whether the police have been able to track its movements. Perhaps it was used when gbc's was home on the charger? Or maybe he would have worried about it being tracked too....
Edit: snap Makara re Allison's phone