I never understood suicide - Sins are forgiven, shame dissipates over time, and there are many habitable countries which have no extradition treaty with the US.
I worked in an academic medicine setting for decades...at a very well known hospital and research center.The human brain is,in a very real sense,just another organ.And like all the other major organs of the body the brain,being the most complicated of the organs,is subject to a myriad of structural and chemical disorders.It's been shown that in clinical depression very real chemical changes occur in the brain.The more pronounced the change or imbalance the more serious the potential consequences.One particular type of imbalance can cause one to believe that he/she is being watched by space aliens (I've actually seen such a patient).Another can cause one to believe that death is the *only* option.