Via FOX 31 Denver:

Bannan told cops that he suffers from hydrocephalus, a condition where excess fluid builds up in brain cavities. Hydrocephalus can can lead to the loss of reasoning skills and other issues. The the Mayo Clinic says that the disease can be caused by “traumatic injury to the brain.”

Bannan is being held at the Boulder County Jail with $500,000 bond. He has not entered a plea. His attorney, David Moorhead, did not immediately return a message for comment.

According to the Denver Channel, authorities arrested Bannan and interviewed him. The arrest affidavit alleges Bannan was “sweating profusely” and “making statements about the Russian Mafia being after him.” He also allegedly said that he did not mean to shoot the woman, saying  “she did not deserve that; she was a good person.”