Dr. Lynne Fenton treated Holmes for several weeks before he left a CU graduate program at the Aurora campus and only six weeks before the July 20 shooting at the Century 16 theater in Aurora.

However, it's unclear whether her colleagues actually met with Holmes.

The CALL7 investigators first confirmed through sources that Fenton had expressed her concern about Holmes with a CU threat assessment team and a campus police officer. She also asked for and received a police background check on Holmes.

Her actions broke doctor-patient confidentiality, Ferrugia reported. The specific nature of her concern is unknown.

Holmes is now charged with the murders of 12 people and the wounding of 58 others in the movie theater rampage.

His defense attorneys have said in court that Holmes suffers from mental illness.