I've worked many suicides in my career; especially when assigned to the homicide unit. The vast majority were tragic. For the most part, suicide can be described as a permanent solution to a temporary problem. The victim's family needlessly suffers. Those families endure lifelong guilt and question themselves about how they might have prevented the suicide. I feel for them. Always have.
With that said, I also believe true evil exists in this world of ours. Ariel Castro is an example of that evil. The horrors he put those innocent young women through cannot be adequately described.