OK - but the parents of the Sandy Hook killer allowed him to sit in his darkened room, watch violent video games and generally behave in an insane way. She also took her crazy kid to the gun range. Personally, I think these particular parents were as nutty as hell.
To take a maddened kid to a gun range was dangerous to everybody there, let alone the kid.
Anyhow, it’s not always the madman who has all the illusions. Sometimes it’s his family too.