extinguishers on board, safety harnesses. these five-point safety harnesses. can't be any older than three years from the present date. there are a lot of rules surrounding this. so this is not the kind of thing you hear just happens organically people decide they're going to do it. there is an organization here and they do operate. what we have right now are a lot of questions about how something like this happens? about who is it up to to enforce certain rules? are there supposed to be barricades everywhere? is it up to the people who show up to know what all the rules are and to follow them? and also is there anyone who checks the entire length of the course? >> that was josh livs for us there. and police in buffalo, new york, they're still searching for the gunman in a shooting spree outside of a downtown restaurant that left four people dead. they arrested a 25-year-old suspect, but apparently he was not connected to the shooting, so the charges were dropped. though he remains in jail for unrelated parole violations. four other people were injured in saturday's shooting spree during a celebration for a wedding anniversary.