02/14/2013 01:42 pm ET

UMD Shooter Dayvon Maurice Green Reportedly Had Mental Illness, Worked For Campus Police

Dayvon Maruice Green, the 23-year-old University of Maryland graduate student whom police have identified as the shooter in a murder-suicide early Tuesday, was legally able to purchase two guns and work for campus police despite reportedly suffering from a mental health disorder.

Police said Green lighted a fire in the basement of a house he shared with fellow students Stephen Rane and Neal Oa. The smoke awakened Rane and Oa, who then went outside, where Green fired a 9mm pistol at them before turning the gun on himself. Rane died from his wounds, but Oa survived and will return to school.

The Washington Post reports that police later found a loaded semi-automatic Uzi submachine gun and a machete in Green's shoulder pack.

Police said Green suffered from a mental disorder, but would not elaborate further. Sources told both the Post and the The Gazette that Green had been diagnosed with schizophrenia and bipolar disorder.

According to the Gazette, Green had admitted himself to a mental facility in 2009. If Green spent more than 30 consecutive days in the facility, he would be barred by Maryland law from purchasing or owning a firearm, and authorities are now trying to determine the length of his stay. Police released a statement yesterday that Green legally purchased the 9mm handgun last year and bought the Uzi a month ago.

Green also worked for two weeks with the UMD campus police as a police auxiliary officer, but did not carry a firearm, according to the Associated Press. He was fired after failing to show up for scheduled shifts.

UMD Police Chief David Mitchell told the Post they did not receive any indication Green may be a threat. Patch reports UMD President Wallace Loh said the university was not "aware of his condition" and had not treated Green for any mental illness.

According to a National Association of Mental Illness survey of college students, half of all students with a mental illness do not disclose their mental health condition to their college. Sixty-two percent do not know how to access accommodations that are available to students diagnosed with mental health conditions.



View more videos at: http://nbcwashington.com.

Recent Shootings On College Campuses In The Past 3 Years