It does appear that Mom was an addict and mom/son were living at Grandmas place because no other possible home. Kid was a gamer addict. Doesn’t appear he was set to graduate any time soon....if they measured his ‘wits’...I have my doubts he was beyond the 9th grade level. Also based on news accounts...no father in the picture.
Well he was bent on detroying people once he turned 18 the first thing he did was buy guns and ammo.
It was said since covid he stopped attending classes. So he didn’t graduate.
Something he has in common with the vast majority of school mass murderers.
and no church, no moral guidance.