Alright,
now
we apparently have confirmation from the FBI of the shooter's identity as Crooks.
https://www.youtube.com/watch?v=MZyUCxr046Q
http://i.imgur.com/VeNBg.gif http://i.imgur.com/gd5jC8q.gif
http://i.imgur.com/PKIy7.gif http://i.imgur.com/3p29JqP.gif