The last of four defendants accused of physically and mentally torturing of a disabled man and posting a video to of their deeds to Facebook pleaded guilty Thursday.

The attack drew outrage across the city and the country, even prompting a response from then-President Barack Obama.

Tesfaye Cooper, 20, pleaded guilty according to the Cook County State’s Attorney’s Office.

Cooper is expected to be sentenced at a later court date.

Brittany Covington of Chicago; (clockwise from upper left) Tesfaye Cooper of Chicago; Jordan Hill of Carpentersville; and Tanishia Covington of Chicago. File Photo. | Chicago Police Department

Brittany Covington of Chicago; (clockwise from upper left) Tesfaye Cooper of Chicago; Jordan Hill of Carpentersville; and Tanishia Covington of Chicago. File Photo. | Chicago Police Department

Cooper was charged along with then 24-year-old Tanishia Covington and then 18 year-olds Brittany Covington and Jordan Hill after a Facebook Live video showed the group holding a schizophrenic white man captive in a West Side apartment, forcing him to drink toilet water and cutting his scalp with a knife while making him proclaim, “I love black people.”

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