It is unusual for a perp to surrender...they usually go down shooting. "Suicide by Cop."
Usually they are already suicidal and thus, mentally unbalanced.
This one looks like a "mommy's basement" dwelling man-child to me. Fine with gunning down innocent women... as if he was back in da basement playing his video games, but doesn't want to get gunned down himself. Which tells me his only mental problems are hate and cowardice.