You could be right. Not being a rapist or a murderer myself I really don't know what goes on in their minds but I am more apt to believe it has something to do with sin. Near as I can tell it takes a pretty sick and twisted individual to harm innocent people regardless their sex.
My prayers go out to all those affected by the Kelsey Smith tragedy and I pray that there is a super special place in hell for all those that rip out the hearts of so many people by killing a loved one for absolutely NO reason. If after Judgment day comes God sets up a revenge squad I for sure want to be a member of it.
That's all I have to say on this matter. :-(
You are right. Justice is needed and if not here, they will face ultimate justice.