Greg Suhr resigned under pressure from the city's mayor and ongoing protests over fatal shootings and racist texts within his department.
Commander Glenn Evans also allegedly held a Taser to Rickey Williams's groin and threatened to kill the suspect during the 2013 incident.
The investigation into the department's "patterns and practices" will focus on the use of excessive and deadly force, racial bias, and systems of accountability to determine whether its officers systematically violate constitutional rights.
The mayor dismissed police superintendent Garry McCarthy on Tuesday, but activists are now calling for Emanuel to step down in the wake of the shooting death of 17-year-old Laquan McDonald.
A week after Chicago released footage of a white officer gunning down a black teenager in the street last October, Mayor Rahm Emanuel has bowed to public pressure and asked his police superintendent to resign.
Garry McCarthy was fired by Mayor Rahm Emanuel days after a video of a Chicago officer shooting a teenager 16 times was released to the public.
The president weighed in on the issue of gun control in an address to the country’s top law enforcement officers in his adopted hometown of Chicago.
Multiple shootings in Chicago over the holiday weekend left 53 people injured and nine dead, including a 7-year-old boy who was watching fireworks.
Top cops like New York’s Bill Bratton command hefty salaries when they move to new cities, but many communities are now clamoring for more control of their police departments.
The ongoing gun violence in Chicago is enraging and sad for a group of men standing on a South Side street corner. But it also has its own kind of inevitable logic.
New gun-control legislation from Chicago's mayor is attempting to address a crisis — the fact that he could lose the next election.