One of two alleged gang members accused of murdering a mother, her baby and four others during what police described as an execution-style killing inside a central California home in January has pleaded not guilty. 

Noah David Beard, 25, was arraigned Tuesday and is being held without bail, according to the Tulare County District Attorney's Office.  

He and his alleged accomplice, 35-year-old Angel "Nanu" Uriarte, have been charged with six counts of murder and other crimes stemming from the brutal attack that unfolded on Jan. 16 in Goshen, in the rural San Joaquin Valley.  

Authorities say Beard shot Alissa Parraz, 16, and her 10-month-old baby, Nycholas Parraz, in the back of their heads. Prosecutors believe the home that was targeted is associated with a rival gang. 

CALIFORNIA SHERIFF SAYS 2 GANG MEMBERS ARRESTED IN EXECUTION-STYLE KILLING OF 6 RELATIVES, INCLUDING BABY 

Suspect in Goshen, California murders accused of killing mother and baby

Suspected gang member Noah David Beard has been charged with murder in the January killing of Alissa Parraz, 16, and her 10-month-old baby, Nycholas Parraz, who authorities say were shot in the back of their heads. (Tulare County Sheriff's Office/Facebook)

Beard is expected to return to court on Feb. 16. 

Uriarte, meanwhile remains hospitalized in custody after he was wounded in a shootout with federal agents last week. His arraignment has not been scheduled. 

Investigators believe the two suspects have ties to the Nuestra Familia prison gang. Uriarte was convicted in 2015 of assault with a firearm in association with a street gang, and Beard had juvenile convictions, prosecutors said in a court filing. 

BRUTAL KILLING OF CALIFORNIA FAMILY A ‘CLEAR MESSAGE’ FROM THE CARTEL, SHERIFF WARNS 

Six photos of the victims that were murdered in California.

Photo collage of all six victims of the Goshen, California, family murders on Jan. 16, 2023. (KMPH)

The suspects and members of the victims’ family have a long history of gang violence but the motive for the shooting "is not exactly clear," Tulare County Sheriff Mike Boudreaux said at a news conference last week. 

The other victims were identified as: Rosa Parraz, 72; Eladio Parraz, Jr., 52; Jennifer Analla, 49; and Marcos Parraz, 19. 

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Photo of law enforcement rolling out one of the victims in a body bag.

Tulare County Sheriff crime unit removes the body of one of the victims at the scene where six people were killed in Goshen, California, on Jan. 16. (Gary Coronado/Los Angeles Times via Getty Images)

In January, Boudreaux, during an appearance on "America's Newsroom," described the Jan. 16 attack as "an intentional slaughter and massacre" and that "no one was supposed to be left alive." 

"They went through this house methodically, very slowly," Boudreaux told Fox News. "They made sure that they were going to kill everyone in that home." 

Fox News’ Bailee Hill and The Associated Press contributed to this report.