From what little I can find, the rocket in question was described as being 4" dia PVC about four feet in length launched on 3 E engines with no parachute. That no rocketry organization was supervising (not that members weren't attending) and that videos from previous launches show numerous Safety Code violations.
Shannon Taylor is correct about the size below, the nose cone had a an approximate 1" gash/hole/tear in it from when it had crashed the year before. the cone had fiber glass/ plastic matt protruding from this hole. The owner had stated as he walked by me that the rocket would not have a parachute, and that it had three size "E" engines, and he was expecting it to "not survive" the flight. I have my own personal comments i could make but i believe they would not serve a purpose of making this any better sooo...
Let me be Clear This was an adults Rocket, not a Scouts. It was Launched at an experimental pad for rockets of this nature. As for its place to being used at an event like this i would leave it up to the NAR and the BSA to decide how to proceed at future events. I believe this incident will help with the safety of future events as long as the reality is shown that this was NOT a typical rocket seen at these events and that the Scouts Rockets are much smaller and typically only use up to a single stage "C" rated engine. I will say that a "Rocket inspection Check" at future events for safety should be conducted for larger unconventional rockets that then could be launched further away from spectators.
Forget the jailhouse lawyering and let me know how do you feel? It can be pretty much ascertained that more than one rule was broken.