CHICAGO (AP) — A judge denied pretrial release of a 22-year-old man charged with murder in the fatal shooting of an off-duty Chicago police officer during a court appearance Friday.

Xavier L. Tate Jr. is charged with first-degree murder, aggravated vehicular hijacking and possession of a stolen firearm in the April 21 slaying of Officer Luis M. Huesca, 30.

Huesca was shot 10 times, prosecutors said in court.

Chicago Police Chief of Detectives Antoinette Ursitti said during a news conference Friday that investigators identified Tate in part due to video evidence collected from more than 90 locations after Huesca was killed.

Video from the area of the shooting allowed detectives to track Tate to a business where he bought a bottle of water using a relative’s bank card, Ursitti said. When police located Huesca’s stolen vehicle after the shooting, that water bottle and clothing Tate was wearing at the time of the shooting were found in the car.