Mothers Day Shooting

So 19 people was wounded by a Mothers Day shooting that the city held. I believe that is the third violent shooting that the city had when the city had a gathering. Now people that live in the neighboor hood or near it is afraid to walk down the street or even walk down the street. Kids cant walk down the street or play with their friends any more. Why will someone have a shooting out at a Mother's Day gathering? Is his mother past along? Was his mother out of his life when he grew up? or was he abandoned when he was little by his mother? How can they not have the suspect if the city held an event? Do the police not prepare for incidents like this? What if the suspect strikes again and someone gets killed this time? Police should ask themselves those questions if they haven't already.