Hmmm I have always had great interests in Serial Killers and I am personally still searching for info as most of the information posted here is from CNN :-P and I aint the biggest fan of CNN.

But well some intresting theories, will "participate" soon!
The use of "hacker" to mean "security breaker" is a confusion on the part of the mass media. We hackers refuse to recognize that meaning, and continue using the word to mean, "Someone who loves to program and enjoys being clever about it."
"Its not a bug, its a feature" (Epic Games)