ALBURQUERQUE (KRQE) - A statement of probable cause outlines how Nehemiah Griego eventually confessed to killing his family and how he told officers he did not want it to stop there.
A Bernalillo County Sheriff's officer recounts questioning Griego after the 15-year-old boy told him he understood his rights and did not want an adult or lawyer present.
Griego told conflicting stories before admitting he was "annoyed with his mother," and allegedly confessing to gunning down his parents and three younger siblings. Even how he allegedly sent a picture of his dead mother to his girlfriend.
According to the statement Griego also told officers after shooting his family , he reloaded two rifles so "he could drive to a populated area to murder more people."
Sources say Griego went to the South Valley Walmart after investigators say he killed his family. He sat in the parking lot for up to an hour with an AR-15 assault-type rifle and a .22 rifle with a scope, as he contemplated shooting people at the store.
This news shocked shoppers.
"I think we were there on Saturday," one woman told KRQE News 13. "That makes me scared. Thing have been happening all over the world, but to have it less than a mile from your home, makes you more scared."
Griego also told investigators, "he wanted to shoot people at random and eventually be killed while exchanging gunfire with law enforcement."
Sources say he contemplated doing the same thing at Calvary of Albuquerque in the North Valley.
Instead, Griego went to the church, where he told a pastor and security guard his family was dead. The security guard then called 911.
Dickie Maestas, a neighbor of the Griego family, says he's relieved the carnage stopped on Long Lane.
"It's just really sad," Maestas said. "I'm glad it didn't go any further than it did, and it's sad that it ended up the way it did. I'm sure all the neighbors feel the same way."
After confessing, Griego was arrested. He faces two charges of murder , and three charges of child abuse resulting in death.
The District Attorney says Griego will be tried as a serious youthful offender, which means he could be sentences as an adult if convicted of first degree murder.
Griego could make his first appearance in court on Tuesday.