Chicago police have detailed how Jose Medina, accused of killing college student Sheridan Gorman, was identified and caught after surveillance footage captured his distinctive limp. Gorman's family previously released a statement expressing disappointment.

Alex Villa was arrested and spent ten years in prison for the 2011 murder of an off-duty Chicago police officer, despite evidence against him and two others not stacking up, raising questions about the US justice system.

A new Guardian podcast, 'Off Duty,' revisits the conviction of Alexander Villa, raising troubling questions about how the case was built, particularly concerning the 2011 killing of off-duty Chicago police officer Clifton Lewis.

Guardian Investigates announces 'Off Duty', a new series detailing a 12-year battle for innocence by a man wrongly accused in a Chicago police officer's murder.

A new podcast, 'Off Duty: The Crime,' details the 2011 murder of Chicago police officer Clifton Lewis, who was shot while moonlighting as a security guard.