The 15-year-old New Mexico teen charged with two counts of murder and three counts of child abuse for the Saturday slayings of his dad Greg Griego (51), stepmother Sara (40) and siblings Zephania (9), Jael (5) and Angelina (2) has been identified as Nehemiah Griego, a "fairly quiet" and camouflage-clad kid who the Bernalillo County Sheriff's Department says "used multiple weapons, including a military-type assault rifle" — reported The New York Daily News.
Griego was also home schooled and wasn't registered in the local school district. According to the NYDN, a MeetOne profile showed Griego wearing dark military fatigues. "I'm a fun loving guy who [likes] to make [people] happy [...] I might be shy but I’ll open up once you get to know me," the profile reportedly read.
Griego was charged with two counts of murder and three counts of "child abuse resulting in death," Bernalillo County Sheriff’s Department spokesman Lt. Sid Covington said Sunday. "Right now we're to the meticulous points of processing the scene and collecting physical evidence, and this is a vast scene with a lot of physical evidence," he added.
Authorities said that so far a motive is unclear. They plan to hold a news conference to reveal additional information on Tuesday.