I'm sure of it, read that there may be 2,000 active serial killers just in the USA alone, and over 10,000 on earth...and this probably doesn't even take into account ritual murders where people may not even be accounted for, such as babies not given birth certificates etc.
Idk. His case was particularly sad and messed up. Very specific combination of trauma from his mother, social isolation, and mental illness. It's possible though.
