Perhaps, but remember: He told all other responders to stay back at least 500 feet. That's what will probably hang him. It's not that he didn't protect, he made it so no one else could protect either. I imagine there were quite a few Broward cops willing to go into that building, but they were hanging back waiting for more information from Peterson... who apparently wasn't doing much to acquire it by holding down his "tactical position" for ~30 minutes. He also claims he called in a code red (campus lockdown), which is false. Someone else did and ~3 minutes after the shooting started. The culpable negligence (endangerment) charges sound possible for such keystone coppery.