People in the theater being interviewed in the live stream here are reporting tear gas cans were thrown from the back of the theater as well when the gunman entered the emergency exit door, which if true and not confusion might mean a second person involved.
These guys are insisting there had to be another person.
http://www.9news.com/video/default.aspx ... 5071045001People in the adjacent theater are reporting small explosions, possibly tear gas cans, in that theater as well in the beginning, which would also seem possibly to indicate more people involved than just the one in custody.