Cop kills security officer

gun in his back,” witness Adam Harris told WGN-TV.

“Everybody is screaming out, ‘He’s a security guard,’” Harris said. But Roberson was then shot by the police officer. No details have been released about the officer.

Roberson was licensed to carry a firearm, Ansari said.

Charges were pending Monday against the man who investigators believe fired the initial shots during a dispute. His name had yet to be released, and he remained hospitalized Monday, Ansari said.

Investigators said the initial gunfire was reported around 4 a.m. An officer responding from nearby Midlothian encountered and shot “a subject with a gun,” Midlothian Police Chief Daniel Delaney said in a statement. The person was later identified as Roberson.

Roberson was the only person killed. The other four people who were shot suffered wounds that weren’t considered life-threatening, Ansari said.

A federal lawsuit seeking more than $1 million was filed Monday on behalf of Roberson’s mother, Beatrice Robinson, against the officer and Midlothian.

Roberson was dressed entirely in black and wearing a hat with the word “Security” on the front, said Gregory Kulis, an attorney for Beatrice Robinson.

The Rev. Marvin Hunter said Roberson was “an upstanding young man” and a promising keyboard player at his and several other area churches.

Roberson, the father of a 9-month-old boy, was trying to “get enough money together for a deposit on a new apartment,” said Hunter, the great uncle of Laquan McDonald, a black teenager fatally shot in 2014 by a white Chicago police officer.

Roberson also had hopes of someday becoming a police officer, according to his son’s mother.