William Wil Lewis, 28, was killed in Chicago on July 12, 2014. Born March 4, 1986, in Guatemala City, he had moved to Chicago from Milwaukee. Initial reports described his death as a violent crime and the Chicago Police Department launched an investigation.

Investigators identified several suspects and made multiple arrests, but prosecutors were hampered by weak evidence and unreliable witnesses, and the case experienced delays and complications. Leads and public tips continued to be followed intermittently, and the case remained unresolved as of the last available update. Wil’s family and community held vigils and worked to keep attention on the investigation.

Who knew Wil, where he worked or socialized in Chicago, or who might have information about the night of July 12, 2014?