<p>He may in fact have an inferiority complex about his height. But if so, that simply exacerbates the problems and the dangers he poses. Most school gunmen (think Columbine) felt "picked on". It would not be unusual for someone to escalate his violence to "prove his manhood" (as this guy apparently did when he pushed your friend's face into a wall).</p>
<p>Report this IMMEDIATELY.</p>