(((songsinmyhead)))

I'm very sorry to hear of your tragedy and the struggle of your friend...
you need to be sure to talk this out at length with someone IRL... you need to be able to get through this with a better understanding of your own emotions and feelings.
Grief is a process, and when someone takes their own life, it's a complicated process. Numbness, anger, disbelief, guilt... they all become wrapped up in your thoughts.
Take care of yourself during this time, be gentle with yourself. I'm sorry he felt he couldn't handle life. That is so sad.