One of two homicide suspects in death of Pittsburg convenience store clerk arrested in Antioch

Jessica Russo was arrested by Pittsburg Police in Antioch on Wednesday, March 29, 2023. Photos of scene by Allen D. Payton. Gregory Rossignon is still wanted for the March 22 murder.

Following hours-long stand-off outside home male suspect still wanted; his father says female suspect pregnant with male suspect’s child

By Allen D. Payton

Shortly after 2:00 pm Wednesday, March 29, 2023, the Pittsburg Police Department’s Special Response Unit served a search warrant at a residence in the 2000 block of D Street in the city of Antioch for two suspects wanted for murder of a Pittsburg convenience store clerk on March 22. During the service of the warrant, Jessica Russo was located and arrested. She was booked and taken to the Martinez Detention Facility.

Pittsburg Police officers near the house on D and W. Madill Streets in Antioch. Members of the Pittsburg Special Response Unit with the department’s Bearcat armored vehicle.

After a methodical and exhaustive search of the residence was conducted, Gregory Rossignon remains outstanding and still wanted for murder. During the search officers approached the house and several times, broke windows, dropped a phone with a phone line into the house, called out on the loudspeaker for Rossignon to pick up the phone and dial a number to speak to police. The officers flew drones inside and outside and deployed four rounds of a chemical agent believed to be tear gas inside the home. After the second round of gas another woman emerged from the residence about 5:53 p.m. and was detained, placed in handcuffs and escorted from the scene.

Pittsburg officers at front door breaking out windows, tear gas smoke emerged from the house’s attic, and a second woman was detained.

About 7:35 p.m., Rossignon’s father, who identified himself as Gregory, Sr., arrived on the scene and asked to speak to his son “so everyone comes out of this alive”. He referred to Russo as his daughter. When shown a photo of Russo and asked if she was who he was referring to, Rossignon, Sr. said, “yes, I call her my daughter. She’s pregnant with my son’s child…my grandchild.” He told police, “I’ll strip down if you need me to and walk in there to talk to my son.” Later, ,a woman drove up to the scene and said she was the suspect’s mother. Officers took both parents to an area on Lawton Street where they waited but did not speak to their son.

A drone was sent into the house through windows police had broken out. Gregory Rossignon, Sr., the suspect’s father, arrived on the scene offering to speak to his son.

At about 9:15 p.m., an officer said he expected to wrap things up shortly, but that they had not had any contact with the suspect nor could confirm that anyone was still in the house.

The Pittsburg Police would like to thank the Antioch residents who live in this area for their patience during the service of the warrant. Several residents were escorted by police to their homes on D Street. But one mother and daughter who live next door to the house had to find somewhere else to stay for the night. Although offered to stay at a Pittsburg motel by one of the officers, they chose to stay with friends. The woman said she expected to return to her home Thursday morning.

The Pittsburg Police Department is asking anyone with information related to Gregory Rossingnon’s whereabouts to contact the local police. We are also asking anyone with information contact Detective Jonathan Elmore at 925-252-4875 or the Pittsburg Police Department Tip Line at 925-252-4040.

See more photos and video at

the attachments to this post:

Drone & broken window. Rossignon Sr arrives 032923

Tear gas from attic, officers at front door, 2nd woman detained 032923

Pittsburg officers on D St. & tactical team with Bearcat 032923

Jessica Russo in Pittsburg Police vehicle 032923 & Gregory Rossignon

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