It doesn't have anything to do with SERPs for sure, and if it does then maybe you shuold seriously get your ass offline for a day to know that there is a life that's waiting to be lived. The reason people committ suicide is that they have no more hope. When hope dies, you die inside and when that happens, it's hard to continue your life, because without goals and nothing to look forward to, there is not much you can accomplish. Life is about progress and when you feel like there is nothing to top your previous accomplishments or things that you had fun doing, then you may think your time is done. Truth is that there is always a new door opening. One closes, a new door opens. Life is like that. No matter how fucked up things may be and how much you have sabotaged yourself, as long as you are on this earth, you can and should make an impact, a positive one. Just my 2 cents.
The common reason for suicide is depression...we don't know what's in the suicides' mind...it's about a feeling to hard to deal with