Instead of getting the help he hoped for, he spent much of the time in the unit alone, growing increasingly angry, drinking heavily and abusing Percocet. In early 2009, he separated from his wife. While on the phone with her in March 2009 he shot himself to death. He was due to be discharged at the end of the month.

Though Ms. Nowicki does not attribute her husband’s suicide to the long wait for his discharge, she said the slowness of the process and the lack of support from the transition unit added to his sense of hopelessness.

“It was just a bunch of red tape,” Ms. Nowicki said. “He would spend days trying to track down his own medical records.”

Army officials acknowledged that wait times for medical discharges at Fort Carson had grown. A major reason is that Fort Carson is part of a pilot program with the Department of Veterans Affairs in which the Army and the V.A. collaborate in evaluating soldiers’ injuries. The collaboration between the two bureaucracies is expected to speed up veterans benefits once a soldier leaves the Army, but it can lengthen the initial evaluation period, officials said.

Michael Crawford has been waiting more than a year for his medical discharge. As his anxiety and depression have worsened, so have his problems in the unit. His rank was recently reduced to private in punishment for overstaying leave and using marijuana.

But things are looking up, his mother believes: he will be able to stay with her in Michigan while awaiting his discharge. His mother, Sally Darrow, has already seen one son commit suicide. She believes that Michael would become the second if he had to return to Fort Carson and the transition unit.

“At home, with family and schoolmates, he’s dealing with things better,” Ms. Darrow said. “He’s not safe there.”