From what I understand the Chief was not. I understand it as the dad was one of them that handed him the gun.
The dad turned to get his camera just as it happened.
But I still think should charge the dad.
Then you misunderstood the articles that have been published.
Furthermore, it is doubtful that anyone not directly supervising or shooting would have been allowed in near the firing area.
http://www.courant.com/news/local/hc-uzideath1205.artdec05,0,1671869.story
Excerpts from the above article that are notable:
As Christopher fired at a pumpkin, the Uzi's rapid rate of fire 1,700 rounds per minute caused the gun's barrel to climb and the boy lost control of the weapon, said William M. Bennett, the Hampden, Mass., district attorney who announced the indictments Thursday.
A flier advertising the event read: "N
o age limit or licenses required to shoot machine guns, hand guns, rifles or shotguns," and "It's all legal & fun No permits or licenses required."
The grand jury did not indict Christopher's father, Dr. Charles Bizilj, who was standing nearby preparing to snap a photo of his son when the accident occurred. Bennett said Bizilj will be punished each day for the rest of his life.
Bennett said Bizilj selected the small weapon for his 4-foot-3, 66-pound son to fire after being assured it was safe.
Bennett said the father was not charged because he was a layman and based his decision on information from others who should have known it was too dangerous.
The district attorney said a 15-year-old familiar with guns, but not a certified instructor, accompanied Christopher to the firing line and was there when he shot himself. The boy will not be charged, Bennett said.