http://www.wkyc.com/news/article/252995/396/Witness-Someone-let-gunman-inside-Colorado-movie-theater-
"As I was sitting down to get my seat, I noticed that 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, which I thought was unusual to take a phone call. And it
seemed like he probably pried it open, or probably did not let it latch
all the way. As soon as the movie started, somebody came in, all black,
gas mask, armor, and threw a gas can into the audience, and it went off,
and then there were gunshots that took place
"As I was sitting down to get my seat, I noticed that 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, which I thought was unusual to take a phone call. And it
seemed like he probably pried it open, or probably did not let it latch
all the way. As soon as the movie started, somebody came in, all black,
gas mask, armor, and threw a gas can into the audience, and it went off,
and then there were gunshots that took place