[chimeracoder]

> I had no idea he was in any sort of distress.

> I know it's silly but I wish I had replied, thinking that it would have made a difference somehow.

In case you're still harboring any sense of guilt over this, please don't. You are not responsible for your friend's death.

This is a common reaction when a friend or acquaintance commits suicide; it's normal, but don't let it get the better of you.