Ted Bundy [0]
Andrew Cunanan [1]
Jeffrey Dahmer -
I wouldn't say it's "unusual" [2]
[0] http://maamodt.asp.radford.edu/Psyc%20405/serial%20killers/B...
[1] https://en.wikipedia.org/wiki/Andrew_Cunanan#Early_life
[2] http://www.examiner.com/article/22-serial-killers-with-high-...