Marlawn J Chaney, 23, was found shot to death on the front porch of a vacant house in the 1800 block of Newton Avenue in Kansas City, Missouri, in September 2011. His killing was described as an execution-style shooting. At the time, Chaney had been a key witness in a 2007 murder prosecution but had recanted his earlier testimony by sending a letter to the defendant’s attorney claiming he was the shooter and that he needed to get himself right with God.

Chaney’s recantation prompted a new trial for the defendant, Marlyn Standifer. Before that retrial took place, and after Chaney had been released from custody on an unrelated robbery charge, Chaney was murdered. With Chaney unavailable to testify, prosecutors could not secure a conviction and Standifer was later acquitted of James Atkinson Sr’s 2007 killing.

The murder of Marlawn Chaney remains unsolved; no arrests or suspects have been publicly named. Does anyone have information about Chaney’s last known movements or who might have wanted him silenced?