Aurora, Colo., shooting suspect James Holmes came to the attention of the threat assessment committee at the University of Colorado but no further action was taken because he left the school more than a month before the attack that killed 12 and injured 58, sources told ABC News.
ABC News has learned that Dr. Lynne Fenton, the psychiatrist who was treating Holmes, 24, at the school, was also a key member of the university's threat assessment team. The group of experts were responsible for protecting the school from potentially violent students.
KMGH-TV, ABC News' affiliate in Denver, reported exclusively that, according to sources, by early June, Fenton had informed other members of the team about her concerns regarding Holmes.
But on June 10 -- three days after Holmes bought an assault weapon and added it to his already growing arsenal -- he suddenly told the university that he was dropping out of the neurosciences doctoral program with no explanation.