I think we all here know why Las Vegas shooter Stephen Paddock committed suicide.
After shooting thousands of rounds for 10 minutes with high caliber rifles and without any hearing protection he must have had a horrendous tinnitus, hyperacusis and hearing loss in both his ears, and at that moment he realized that he could not live with that terrifying condition as it would drive him crazy. Therefore he decided to take his life as his tinnitus was getting so loud that his head was about to explode from it.
After shooting thousands of rounds for 10 minutes with high caliber rifles and without any hearing protection he must have had a horrendous tinnitus, hyperacusis and hearing loss in both his ears, and at that moment he realized that he could not live with that terrifying condition as it would drive him crazy. Therefore he decided to take his life as his tinnitus was getting so loud that his head was about to explode from it.