A Cold Spring police officer was killed late Thursday after answering a call about a suicidal person, the Star Tribune reported.
Tom Decker, 31, was shot to death in what authorities are calling an ambush killing, the Huffington Post reported.
The shooter was identified as Ryan Michael Larson, 34, of Cold Spring, the Star Tribune reported.
Authorities received a call that Larson may be suicidal but were unable to get a response when they arrived at his apartment, the Huffington Post reported.
Decker and his partner returned to Larson's apartment one hour and 45 minutes later. Larson confronted the two officers upon their return and shot and killed Decker, the Star Tribune reported.
Decker had been wearing a protective vest, and authorities have not released where the bullets hit him, the Star Tribune reported.
Larson was the father of four children and had been on the police force for six years, according to the Huffington Post.