Keith Mosely, 34, of Columbia, Missouri, was shot and killed in Jefferson City on the evening of April 22, 2012, during what began as a drug transaction that investigators say turned into a planned robbery. Authorities identified three men — Brandon Chase, Khiry Summers, and Tracy Session — as the primary suspects in the confrontation that ended with Mosely’s death.

Tracy Session pleaded guilty in November 2012 and received a 20-year prison term. Brandon Chase’s first trial in March 2013 ended with a hung jury; a second trial in June 2013 resulted in convictions for second-degree murder, first-degree robbery, and armed criminal action, with sentencing scheduled for July 2013. Khiry Summers was scheduled to be tried in July 2013. A fourth man, Jajuan L. Story, later pleaded guilty to second-degree murder and armed criminal action and was sentenced to 13 years in 2014.