A Del City police captain charged with first-degree manslaughter in the shooting death of 18-year-old Dane Garrett Scott Jr. is expected to surrender to authorities Friday morning.

Randy Trent Harrison, 47, was charged Thursday in Oklahoma County District Court.

Scott was killed March 14 after a midafternoon car chase that ended near the intersection of SE 15 and Interstate 35.

A probable cause affidavit filed with the charge said Harrison fired four shots as Scott ran away after he had been disarmed. The first three shots missed, and the fourth hit him in the back.