A co worker of mine, Dave, 46, committed suicide a week ago and it has affected me more than I thought it would. I am a zookeeper at the Honolulu Zoo. Dave shot himself in the head in his home. He lived by himself and he had been out on workmen's comp for back surgery for over a year. He wanted to come back to work but the zoo would not let him and he was mad about that. We are city employees so the city was wanted to retrain him to do something else within the city that did not require so much lifting and physical work. I talked to dave two weeks ago when he stopped by to chat with the keepers. He seemed happy and was volunteering with the coast guard learning how to drive boats. He was mad though at the zoo for telling the city that he could not do the job of zookeeper anymore. I keep seeing in my head a picture of dave crying sitting on the floor with a gun to his temple. Are suicides usually committed when people are angry. I just need to figure out why he would do that.