Hi Jason!
Okay, so this happen when it's also connected to the charger?
Are you able to test it with a new battery? Would try this first. Easy test and those batteries are not that expensive!
If this failed, then it could be multiple things. From wifi chip to a ribbon cable (camera, or screen or anything else).
So it will be hard to troubleshoot.
Do you also hear a pop when it turns off? Or a quick white flash in 1 of the screens?