Aurora, Colo. - Questions are being raised about whether the Colorado movie theater shootings could have been prevented.
ABC News has learned the psychiatrist who was treating suspect James Holmes was also a key member of the school's threat assessment team.
That doctor had notified the team about her concerns about Holmes' behavior, but when Holmes left the university, the team never intervened.
Experts say Holmes’ exit should have been a red alert.
"To the best of our knowledge at this point, we did everything we think we should have done," said Don Elliman, University of Colorado Chancellor.
"I think that's the signal that you should intensify your efforts, not walk away,” said Threat Assessment Expert Barry Spodak. “Under those circumstances, most well-trained threat assessment teams would have gone into action."