North Richmond homicide victim was Richmond resident Derrick Cooper

23rd Street fight turns fatal

Sheriff’s detectives in Contra Costa County are investigating two recent shootings in North Richmond, including the homicide Thursday of 38-year-old Richmond resident Derrick Cooper.

The Contra Costa County Sheriff’s Office released Cooper’s identity Monday and said an autopsy determined he died from multiple gunshot wounds.

Cooper was found in the 1600 block of 4th Street following reports of gunshots about 10:30 p.m., said Jimmy Lee, a spokesman for the sheriff’s office. He was initially transported to Doctors Medical Center before being airlifted to John Muir Medical Center in Walnut Creek, where he was pronounced dead at 3:14 a.m., Lee said.

Then on Sunday at 9:49 p.m.,  sheriff’s deputies responded to a shooting in the 400 block of Grove Avenue, which is within a block from where Cooper was shot. When deputies arrived, they found the 16-year-old boy in a home suffering from a gunshot wound. He was taken by helicopter to John Muir Medical Center in Walnut Creek and is in stable condition, Lee said.

No arrests have been made in either shooting and detectives have not determined whether the two cases are connected, Lee said.

Anyone with any information is encouraged to call the sheriff’s office’s Investigation Division at (925) 313-2600. Anonymous tips can be emailed to or left in a voice message at (866) 846-3592.