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Albuquerque, N.M. • A 15-year-old boy remained in custody Sunday night as detectives tried to piece together what led to the shooting of his parents and three of their children who were found dead in a New Mexico home.

The teenager was arrested on murder and other charges in connection with the shootings, which happened Saturday night at the home in a rural area southwest of downtown Albuquerque, said Lt. Sid Covington, a Bernalillo County sheriff's spokesman.

Authorities identified the victims late Sunday as Greg Griego, 51; his wife Sara Griego, 40; and three of their children: a 9-year-old boy, Zephania Griego; and daughters Jael Griego, 5; and Angelina Griego, 2.

Authorities aren't releasing any details about any conversations the teenager has had with investigators.

Detectives said Greg Griego was a spiritual leader known for his work with firefighters and the 13 years he spent as a volunteer chaplain at the county jail.

"Chaplin Griego was a dedicated professional that passionately served his fellow man and the firefighters of this community," Fire Chief James Breen said in a statement.

Jail Chief Ramon Rustin said Griego was instrumental in the creation of the Metropolitan Detention Center's chaplain program and worked to get inmates integrated back into the community.

Authorities said each victim suffered more than one gunshot wound, and several guns were found at the home, one of which was a semi-automatic military-style rifle. Investigators were trying to determine who owned the guns.

The Associated Press is withholding the suspect's name during the initial investigation because he is a juvenile.

Neighbors said they saw the first police cars and ambulances arrive at the home Saturday night. Peter Gomez, a 54-year-old carpenter who lives about 200 yards from the home, said he had seen the family — a husband and wife and their four children — pass by many times but didn't know them personally.

"It's a horrible thing," Gomez said. "You see all this stuff that happens all over the country, the shootings in the schools and theaters, and then it happens right here. It's sad."