There is a name for a person who does something like that. Murderer. And no one was responsible for his actions except him. IF he was molested as a child, then the ramifications might explain that- child molestation is a terrible thing- but still in the end the onus was completely on him.
IF he even ever existed.
He existed. He was molested as a boy by a man. He grew up with untreated mental wounds from said molestation. His "way" of dealing with all that repressed pain and angst was to get even with "those that did this to him".
You can call him a murderer. And technically you'd be correct. But if he were alive today, it would be illegal for him to get therapy that would help him undo the wounds that imprinted him compulsively "gay". To do so in the state where he lived {California} would mean his therapist would have his/her license revoked. So in California and New Jersey young men like him in a similar state of angst and repressed toxic issues would not be able to access therapy designed to reverse their compulsive behavior so they could perform sexually with women...who they were initially attracted to before the damage was done to them.
There's your genesis for gay teen suicides. "Embrace your compulsive imprinted behaviors"...it's the law! With no other way out, ugly wounds have a way of getting even. Most just end their own lives. But some, like my friend, commit suicide the slow way...taking as many "of those who did this to me" with them. Murder/suicide. Those situations come from mental angst. Know the mind of your murderers. Don't just call them a bad name. If you were in mental shackles like they are in such a way that it was completely destroying their sanity...would you really be accountable for you actions?