Patrol officers responded and descriptions of the suspects and their vehicle were developed. Just over an hour later, deputies from the Contra Costa County, Office of the Sheriff located the suspect vehicle. Yesterday, the Contra Costa County, District Attorney’s Office filed charges related to the shooting. Erickson Melendez (23 years old, resident of Concord) was charged with 182(a)(1) PC – Conspiracy and 26100(c) PC- Discharge a firearm from a vehicle. AdvertisementWe would like to thank the deputies from the Contra Costa County, Office of the Sheriff, staff at John Muir Hospital, and community members who supported and assisted in this investigation.