Agreed on Bundy, I don't know enough about Cooper to have an opinion.

Richard Ramirez (the Night Stalker) - ENTP too
David Berkowitz (Son of Sam) - INTJ
Jeffrey Dahmer - INTP
John Wayne Gacy (the Killer Clown) - ENTJ
H.H. Holmes - INTJ
Dennis Rader (BTK) - ENTJ

Of course, many of these might also be Sensors; murder was to them a way of attaining sensual pleasure.