Yes, and I think trying to develop profiles for serial killers and mass murderers and other extreme criminals is mostly a waste of time. As you illustrate, whatever profile they come up with, for every one that commits an atrocious crime, tens of thousand, or hundreds of thousands, or more, of others who fit the profile never commit a single aggressive act, let alone a violent crime.
Anyway, when I read some of my traits in that book, I freaked out. "Oh no.....me?"
I had a friend on base who was a counselor, so I asked him about that. He kinda laughed at me, and said pretty much everybody's got traits that could be construed as "nut job", if you try hard enough.
Whew. That was a relief.