Officer Thomas Edward Decker, 31, was killed on November 29, 2012, in Cold Spring, Minnesota, while conducting a welfare check. Decker and a partner had gone to an apartment to check on a man reported potentially suicidal; after an unsuccessful initial contact they returned about two hours later. As Decker exited his patrol car in an alley behind the building he was ambushed and shot twice with a 20-gauge shotgun and died despite wearing his vest.

An early arrest was made in connection with the shooting: Ryan Michael Larson, then 34, was taken into custody but later released when investigators said there was insufficient evidence tying him to the killing. About a month later investigators attempted to question a second suspect, Daniel Joseph Schlienz; Schlienz died by suicide and the shotgun used in the murder was found on property to which he had access. Decker had served six years with the Cold Spring Police Department and four more years with Isle and Kimball; he is survived by his wife and four children.

Did anyone in the Cold Spring area have information about Decker, the welfare check that night, or the people connected to the property where the shotgun was found?