Obviously, what really caused 23 year old Christian Falero to terrorize his apartment building, stabbing four people at random, killing one, while naked, is that he's mentally unstable.
"He was reacting to the earthquake. He started shouting, 'The world is going to end! The world is going to end! I don't want to die!'" said Edwin Rivera, 62, whose 84-year-old mother Isabel was stabbed eight times by the psycho.
Falero suffered from mental illness and was a known drug user.
This story is just so bizarre, and so sad.
We feel terrible for those victims and those close to them, and we hope the ones who survived can heal quickly.
[Image via AP Images.]