The guy is reportedly an ‘active reserve’ servicemember with some bona fide mental issues. That’s bad.
What may be worse is, he’s a Highly Trained Firearms Instructor!™, as described in gasping bated breath by all the talking heads.
The real problem with that not being his skill set, but what equipment he’s had access to. So far, all he’s used is a rifle of indeterminate description, what I hope is it’s his own personal rifle and not one he’s managed to take from an armory, along with other assorted items to use to commit general mayhem if he gets boxed in somewhere.

‘Person Of Interest’ Identified In Maine Mass Shooting

A person of interest has been identified in the mass shooting at multiple locations in Lewiston, Maine, Wednesday, according to the Lewiston Police Department.

“Police are currently searching for a Robert R. Card, 4/4/1983. He is considered armed and dangerous. He’s a person of interest, that is what we will label him moving forward until that changes,” Commissioner Michael J. Sauschuck of the Maine Department of Public Safety, said during a Wednesday press conference. The Lewiston Police Department said it was investigating the killings that took place at a bar and a bowling alley, according to WGME.