for decades. some call you the marshal of the mosh pit. from your experience, how does something like this happen? this is a classic rock and roll tragedy that was preventible. i m sorry to say the but it was. one of the most dangerous areas at concerts is in front of the stage. that s where tartist is. people want to be close to the artist. if you don t manage the crowd, manage the density, manage the people, you end up with crowd crush disasters like this where people die from asphyxiation or from heart attacks due to strard pressure on the crowd. so this was a preventible situation. it should have been identified in the risk assessment planning for this event and in the emergency plan. in fact, if i mate add, the fire marshal of houston adopted the national fire protection safety