re: #118 Dark_Falcon
The thing is, it looks like Holmes did that himself. He bought his ticket and took his seat, then left via the emergency exit so he could rig it to let himself back in.
Could be
But if the witness noticed someone “a person came up to the front row, the front right, sat down, and as credits were going, it looked like he got a phone call. He went out toward the emergency exit doorway” he probably would have also noticed the distinctive hair style/ color
ALSO, if Holmes entered through the theater lobby and bought a ticket to get in, most likely there will be surveillance video of that