If the GPS function is disabled, it's which cell tower the phones were connected to.
As has been demonstrated many times, tower triangulation can place a cell phone with roughly the accuracy described. In the city any cell phone is going to hit multiple towers only one of which is going to carry a call, but the software to perform triangulation has been a feature for a very long time. Even if Carter's, the MC's and Charlotte's phones have GPS disabled, we know that Emma's did not because the MC and Charlotte were tracking her phone. Emma's track identifies the path and timeline that Carter followed. So from the time that Carter started chasing her his location is provable.
They'll say it was the MC's knife. He killed Zac, Carter saw it and chased him, they fought, MC killed him, used his own knife to cut himself then put it in Carter's hand to get his prints on it. The witnesses are not impartial - they live in the same house. By their own admission they owe Emma's life to him so they would say anything to get him off.
We need an impartial witness - say a nosy resident who recorded the incident. Better yet, get rid of the body and sit tight.
The MC's location at the time of Zak's death is provable. Charlotte and the MC can prove that they were at her home and no where near Zak. So the knife could not have been the MC's nor could he have been Zak's murderer. Also provable is the distance between Zak's body and the location that Emma became aware of Carter and that he was coming from the direction of the body. Not to mention that Zak was killed between the movie theater and the location that Carter encountered Emma, and the timeline. Carter turned up minutes after Zak was killed.
If there was no murder attempt, then no one owes anyone for Emma's life, and they are completely impartial witnesses. If Charlotte and Emma owe Emma's life to the MC, then Carter had to have attempted to kill Emma. You can't have this both ways. Either way their testimony is credible.
There's been extensive discussions about disposing of the body which is a criminal act in conjunction with a killing. Doing so might remove the MC protection under the rules of self defense but MIGHT avoid having to deal with a corrupt legal system. People in this thread come down on both sides. I believe, that given Charlotte's resources and my conviction she'll stand behind the MC, his odds are better to call the cops, her lawyers (maybe the press), and act like anyone else who is an innocent victim of a crime (which he in fact is). A number of folks here think that view is naive.
