The suspect is believed to be Robert Card, a 20-year US Army veteran from Bowdoin Center, Maine.
(according to Telegrams so take with grain of salt)
EDIT: Name confirmed by news.
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According to law enforcement, CARD recently reported mental health issues to include hearing voices and threats to shoot up the National Guard Base in Saco, ME.
That's an understatement
He has a written record of telling people voices in his head were telling him to shoot up the army base.
Hmm wonder if something about the US army causes people to mentally deteriorate
Being told to kill whatever looks at you funny might be detrimental to one’s mind idk tho
I wonder if structurally stripping away someone's individuality and personality to make it easier to mold them into an unthinking murderer has any wider implications