I never knew my paternal grandfather. By all accounts, he was a wonderful man who loved his two boys. He had a depression issue and a drinking issue, not a good combination. After being sober for a while, he went off with his 'friends' to Virginia Beach. While there, his best friend back home in NC died. He returned on the next train (that should date him) to go to the funeral. He told his wife (my grandmother) that he couldn't go to the service. She went and took my dad and his brother. When they returned, my dad (only 5 at the time), found his father slumped in front of the gas stove. He had killed himself.
Depression is a terrible demon, indeed.
May the young man rest in peace.