The 19 year old who killed two people and wounded 7 others in a high school shooting in St. Louis may have offered an explanation for Monday's shooting St. Louis police commissioner Michael sack says Orlando Harris left behind a handwritten note He wrote quote I don't have any friends I don't have any family I've never had a girlfriend I've never had a social life I've been in isolated loner my entire life This was the perfect storm for a mask shooter Sex is Harris was armed with an AR-15 style rifle and what appeared to be more than 600 rounds of ammunition He says Harris had ammunition strapped to his chest and in a bag and that additional magazines were found dumped on stairwells I am Donna water