the video was released this week, days before leiutenant tiller is cleared of wrongdoing. a careful consideration of the fact of the case the solicitor writes in her ruling, i have zermd that no criminal charges should be fired against leiutenant mark tiller at the state level. she continues, this has been a very difficult case. no parent should ever are to bury their child. >> we are more disappointed by investigation that seemed more focused on attacking the victim than investigating the shooter. >> at a press conference thursday, hammond's parents and attorney say the blame for the fatal shooting rests solely on leiutenant tiller. >> you would need a set of glasses that doesn't even exist to say that leiutenant tiller was in danger of being struck by that automobile. >> in an interview shortly after the shooting the seneca police chief defended his officer. >> you know when you sign up to be a police officer, that career you might have to use deadly force. >> reporter: choking back tear, hammond's mother says the video proves her son should not have been shot. >> zach ca