After reading other posters questions, it’s got me thinking that the perp was not at the residence prior to DC & Jayme returning from the birthday party. Why? Because I am 100% certain that the perp would have had time to confiscate any cell phones they may have had if he had been in the home when DC & Jayme arrived.
We know one of the three victims were able to call 911 at some point during this crime. So one of them still had DC’s cell phone.
I think this crime began just before the neighbors heard gun shots.
I believe other posters thought maybe JC was followed home from work (something to that affect) or the perp was waiting for JC (parked somewhere out of the way) to return from work.
MOO
From the beginning and I do not know why, I have thought he was followed home from work...