I haven’t seen any updates as of this post.
Who was this guy?
Where did he get the weapon?
We know his supposed motivation:
http://www.thedenverchannel.com/news/arapahoe-hs-shooting/police-paramedics-called-to-arapahoe-high-school
Yet, nothing else.
Hopefully, some vigilant FReepers grabbed some screenshots of his Facebook and Twitter pages....
The Denver Post is reporting that the shooter was an outspoken socialist: