This list looks “sparse”- I remember Laurie Dann in Minesota I think, but she might be considered a spree killer instead. She attacked a school. My hobby for a number of years was reading “True Crime” books, and I have probably way over a hundred, possiblly two hundred. I remember that a large percentage of killers were homosexuals. Also, Henry Lee Lucas claimed hundreds to get trips out of jail, but I think that the real total might have been reduced to one- his mother. But maybe he really did 12 like the site says.
I think what's important to note here is that there is not a simple causative relationship between homosexual identification and serial killing. People who are highly motivated to be socially deviant in a variety of ways cluster at one low end of a U-curve and those who are highly motivated to be socially excellent cluster at the other end, with the large mass of regular folks in between. One man's escalating career as a rapist is another person's med school and gynecology fellowship, if you will, depending on the moral orientation and life circumstances.
The ones who cluster at the "sex-drugs-violence" end may have any number of motivations to be there and do any number of behaviors to satiate the inner drive to deviate from the norm. I often challenge the assumption that homophobia is what "causes" teens to commit suicide. It may be that suicidal youth are more likely to experiment with homosexuality as a way to drug themselves with their body's own adrenaliine -- they may unconsciously solicit the social disapproval to get their brain to make its "fix."
Just sayin'...