What does an alleged attack by a “knife wielding maniac” have to do with the fact that Jodi Arias stabbed Travis Alexander 27 times AND slashed his throat AND shot him? Not much methinks. Still, you get the idea: trauma creates killers! Knife trauma is extra specially traumatic trauma! Except, of course, when it isn’t. When the killer’s brain is wired incorrectly, or their moral compass is notable by its absence, or any one of a number of different psychological factors. Suffice it to say, I was mugged at knife-point as a teen. I have no desire to hurt another human being—except in self-defense. Which doesn’t seem to apply here does it?