37-Year-Old Woman Arrested for Murder in Antioch

On Wednesday, the Antioch Police Department released new information on a fatal shooting that occurred Tuesday in the 2300 block of Mandarin Way in the City of Antioch.

At 2:15 pm Tuesday, the Antioch Police Department responded to a report of a shooting in the 2300 block of Mandarin Way in the City of Antioch. It was reported that a subject was shot in the head. The Contra Costa County Fire protection District requested a medical helicopter, however, opted to ground transport. The victim later died.

Updated Info released by Antioch Police:

On December 27, 2022, at 2:13 pm, the Antioch Police Department’s Dispatch Center began receiving 9-1-1 calls regarding a shooting in the 2300-block of Mandarin Way.

Serico Justice

Officers immediately responded and located Ms. Hannisha Willis, 31, of Antioch, lying on the sidewalk, suffering from a single gunshot wound to the head. Ms. Willis was transported to a local hospital by ambulance but succumbed to her injuries and was pronounced deceased.

The Antioch Police Department’s Investigations Bureau responded to the scene and took over the investigation. They learned prior to the shooting, there was a physical altercation that ensued between Willis and the suspect, Ms. Serico Justice, 37, of Antioch.

Prior to the physical altercation, Justice armed herself with a firearm, which she retrieved from her residence. During the fight, the firearm discharged and struck Ms. Willis in the head. Investigators recovered the suspected firearm used in the homicide.

Detectives arrested Justice for murder, and she was incarcerated at the Martinez Detention Facility. This case will be presented to the Contra Costa County District Attorney’s Office for prosecution. This was an isolated incident and there is no threat to the public.

• FILE: 22-9328
• INCIDENT: Homicide – Shooting
• DATE OF INCIDENT: November 27, 2022
• TIME OF INCIDENT: 2:13 pm
• LOCATION: 2300 Mandarin Way
• VICTIM(S): Hannisha Willis (31 years old)
• SUSPECT(S): Serico Justice (37 years old)

Anyone with information regarding this incident is asked to contact Detective Gerber at (925) 481-8297 or via email: [email protected] . You may also text an anonymous tip to 274637 (CRIMES) using the key word ANTIOCH.

Known 2022 Shootings

• Dec. 17: 16-Year-Old Shot and Killed at Williamson Ranch Park in Antioch
• Nov. 26: Antioch Police Say Store Clerk Shot and Killed in “Botched” Robbery
• Nov. 14: Man Shot After Attempting to Remove Unknown Guest from Family Party in Antioch
• Oct. 30: CHP Investigating Sunday Morning Shooting on Highway 4 Near Hillcrest in Antioch
• Oct. 23: Antioch Apartment Building Struck by Gunfire Sunday Night
• Oct. 19: Antioch Police Investigating Shooting After Vehicle Crash on E 18th Street
• Oct. 9: 18-Year-Old Shot and Killed in Antioch
• Sept.16: Man Shot After Domestic Dispute in Antioch Thursday Afternoon
• Sept. 5: Man Shot Dead in Antioch in Drive-by Style Shooting (homicide)
• Aug 30: Man Shot Monday Outside Hudson Court Apartments in Antioch
• Aug 19: Suspect in Custody After Shots Fired Near Jack London Elementary in Antioch
• July 21: 1 Dead, 1 Wounded in Overnight Shooting in City of Antioch
• June 27: Antioch Police Investigating Three Weekend Shootings
• May 20: Attempted Robbery in Antioch Leads to One Dead, Another Wounded
• May 15: Antioch Police Investigating Sunday Shooting on Wilbur Ave
• April 20: Antioch Apartment Complex Shot Up, Pastor Releases Statement
• April 10: Man Wounded Several Times in Monday Morning Shooting in Antioch
• April 1: Man Shows up at Hospital With Gunshot Wound
• March 28: 16-Year-Old Shot Near Deer Valley High School Prompts Brief Lockdown
• March 14: At least 10 gunshots in the area of E. Madill Street with subject shot
• March 13: Male shot at Clayburn and Lone Tree Way – walks into hospital with multiple gunshot wounds.
• Feb 25: Antioch Police Say Single Shot Fired in Overnight 7-Eleven Robbery on Hillcrest
• Feb 24: Antioch Police Investigating Overnight Shooting on Longhorn Way
• Feb 15: Female Shot in the hand in 700 block of F Street
• Feb 13: Subject arrived at hospital with gunshot wound. Area of Highway 4 or Larskpur area (no info by APD or CHP)
• Feb 8: 76-Year-Old Woman Fatally Shot, Antioch Police Seek Public Assistance (Homicide 4)
• Feb 6:  Female Shot in the hand (J Street) 
• Feb 2: Antioch Police Announce Arrest in Shootout on Peppertree Way
• Feb 1:  Antioch Police Investigate Shooting on Madill Court (Homicide 2 & 3)
• Jan 24: Updated: Antioch Police Investigating Fatal Shooting on Delta Fair Blv (Homicide 1)