Ricky Riggins, 44, was found shot eight times in an alley near 14th and Mineral in Milwaukee shortly after 3:00 a.m. on December 4, 2017. Friends described Riggins as a friendly, nontroublesome man who greeted people warmly; his death left those who knew him searching for answers.

Investigators traced multiple cellphone calls between Riggins and a friend and coworker, Robert Black, in the hours before the killing. The three had gone bowling that night; Black later told police he suspected Riggins of taking $80 from his 2011 Jeep Liberty after dropping him off. Surveillance near the scene recorded a man matching Black’s description pointing a gun at a figure believed to be Riggins, and witnesses reported hearing rounds and seeing a handgun-wielding man run through the alley and a dark gray Jeep speeding away without headlights.

Robert Black was arrested December 7, 2017, and charged with first-degree intentional homicide; he pleaded not guilty at initial court appearances. Does anyone have information about Riggins, his movements that night, or the people he was with?