Sadly,I have worked with many persons over the decades in my work who have suffered sometimes unimaginable guilt when a loved one commits suicide. The critical factor to accept is that the person who commits suicide is the only person responsible for it. Regardless of why,ranging from severe depression to simply choosing not to live anymore,that decision was made regardless of whatever you said or did. To endlessly seek out what you or someone else might have done is unknown and leads nowhere because we will never know. Even when we do not know why the suicide occurred,we can be quite sure it was planned out even if it appears spontaneous. We must do our unique personal grieving and move forward in life. Accept that anger,depression and other emotions are reasonable feelings that often occur after suicides of persons who are close to us. We can love and cherish the memories that were shared together