OAKLAND — It doesn’t matter who fired the fatal shot or who fired first, the defendants charged with murder for a West Oakland mom’s death during a daytime gun battle are “equally guilty” for her death, an Alameda County judge said Friday.

Judge Jeffrey Horner on Friday ruled that there is enough evidence to send Joneria Reed, Jerry Harbin, Alex Davis, Julian Ambrose, Anthony Sims, and Michael Stills to trial on murder charges in connection with the March 9, 2015, slaying of 30-year-old mother of three Chyemil Pierce.

Reed’s son Dijon Ward, 22, was ordered to trial on a single charge of being accessory after the fact for allegedly hiding a gun that Sims used during the shooting at his grandma’s house. A seventh defendant charged with murdering Pierce, Shelton McDaniels, 30, is awaiting a separate preliminary hearing because Horner severed his case from the rest of the defendants due to a conflict during a preliminary hearing.

The sole female defendant, Reed, 38, broke down in tears upon hearing Horner’s decision on Friday morning. She did not fire a gun during the battle but is accused of setting events in motion by calling her son and others to the neighborhood because a man had shoved her. The prosecutor Autrey James said Reed knew the men would come armed.

“Had Ms. Reed not made that call … it would not have happened,” Horner said.

Pierce, a Kaiser Permanente human resources specialist, was fatally struck in the head by a stray bullet while trying to move two of her children safely inside their home after a gunbattle broke out at Chestnut and 30th streets. Pierce had just picked up her 9-year-old daughter and 7-year-old son from school.

Oakland police detective Phong Tran testified earlier in the week that a handyman working on Reed’s apartment complex ushered the children inside their home, and then returned outside to find Pierce on the sidewalk bleeding from the head.

Testimony from a preliminary hearing that concluded Friday indicates that Davis, 26, probably fired the fatal shot but, according to Horner, who fired the fatal shot is irrelevant because “they are all equally guilty.”

According to James, the gunbattle occurred when Harbin, 31, allegedly pushed Reed while they and others broke up a fistfight between two women. Reed allegedly summoned her son and his friends to the neighborhood because Harbin “put his hands” on her.

After the initial fight, Harbin left the neighborhood before returning armed and in a different vehicle. Upon his return, a woman pointed out Harbin as Reed’s assailant, which led Ambrose, 18, and Sims, 21, firing the first shots at him, according to testimony.

Harbin, Davis, Ambrose, Sims, and McDaniels are all accused of firing guns during the battle. Harbin, Sims, and Ambrose were shot during the gunfight.

Like Reed, Stills, 22, is not accused of firing a gun. He is charged with murder for allegedly arming McDaniels with an assault rifle at the scene.

In preliminary hearing arguments on Thursday, several attorneys argued self-defense for their clients. Reed’s attorney Michal Tal describe the gunbattle as a spontaneous event that broke out while Reed was sitting in a car.

“She didn’t ask anyone to bring a gun,” Tal said.

The defendants return to court for arraignment on Sept. 23.