Police Identify School Gunman

Police identified the gunman who took six girls hostage - killing one before turning the gun on himself - in a classroom Thursday as 54-year-old Duane R. Morrison.

Police also said armed law enforcement eventually moved in on Morrison because he was sexually 'traumatizing' the victims during negotiations with police. FOX News has learned that the girls were not raped but inappropriate touching occurred.

'We have confirmed he did traumatize and assault our children ... this is why I made the decision I did. We had to go try to save them,' said Park County Sheriff Fred Wegener said during a press conference.

Platte Canyon High School, where the shooting took place, remained closed Thursday as students and police gave details of the ordeal.

Morrison apparently dressed himself like a student and walked around the school before taking any hostages.

'We knew there as kind of something wrong with the guy when we had seen him ... it's a small community where we know everybody,' student Joshua Bellomy told FOX News. 'He was trying to blend in with us but some of the students there tried to talk to him and knew that he was older and didn't know what was going on with him.'

Morrison began the takeover by ordering students to line up at the chalk board as he tapped each with his gun and told them to stay or go, said 16-year-old student Cassidy Grigg. He said the man walked in, fired a warning shot at the floor and ordered the students to line up. He told some to leave and others - all girls - to stay.

'You could tell that he wanted the females,' Cassidy said on NBC's 'Today'.

16-year-old student at the school, Cassidy Grigg, initially said in interviews with network morning shows that he was in the classroom and offered to stay with the girls -- but the gunman threatened to kill him.

His father, Tom Grigg, gave a similar account of what his son had told him. But later Thursday, the teen's mother said he made the entire story up.

Larina Grigg said her son told her he fabricated the story because he wanted it to be true.

"He said, 'Mom, all those kids were my friends and I just wanted so much to help them. ... I guess I just made it up in my mind. I just wanted it to be true so bad.'

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