[Grampa Dave]

“From the article: “Frein... lived about 20 miles from the ambush site and lived with his parents until a few months ago.”

‘Dude is 31 and still living with mommy. Hell, he couldn't even survive in his own apartment.’

My old memory seems to recall a few failures to launch in recent years going berserk and killing innocents.

[SargeK]

Yep. Too much time gaming in the basement and working up conspiracy theories about why it the fault of others that he is a loser.