This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

HIGHLANDS RANCH, Colo. — The man who killed a Douglas County sheriff’s deputy on Sunday was hospitalized for a psychotic episode in 2014 and later escaped, according to a report to Congress on Tuesday.

The document, provided by Rep. Mike Coffman’s office, says Matthew Riehl was hospitalized at the Veterans Affairs facility in Sheridan, Wyoming, in April 2014.

He later was hospitalized at a veteran’s center in Rawlins, Wyoming.

After the hospitalization, Riehl escaped the mental health ward. He was later located and placed on a 72-hour mental health hold.

Although the report does not go into detail about the psychotic episode, it shows a history of mental illness for Riehl, an Iraq war veteran.

There was an “urgent contact for mental health on July 22, 2015, with an initial mental health assessment completed Aug. 26, 2015,” according to the document.

Riehl then skipped an appointment on Nov. 3, 2015, and was called by the clinic twice in August 2015 to reschedule an internal medicine clinic, but he declined.

Riehl ambushed four deputies Sunday morning and killed Douglas County deputy Zackari Parrish.

Riehl fired more than 100 rounds from a rifle and wounded three more deputies, a Castle Rock police officer and two neighbors.

A tactical team shot and killed Riehl about 90 minutes after the shooting started.