Sheriff: Teen suspect in murder of family learned to shoot from father 
 
 Bernalillo County Sheriff Dan Houston says murder suspect Nehemiah Griego learned to shoot from his father, and the two often went shooting together with guns that were not kept locked up in the home. 
 
 Houston revealed that fact during a grim news conference Tuesday that detailed the murders of five members of the Griego family Saturday in their South Valley home. 
 
 Nehemiah Griego, 15, is accused of killing his parents Greg and Sarah Griego, along with 9-year-old Zephania, 5-year-old Jael and 2-year-old Angelina. 
 
 The weapons used in the killings – a .22 rifle and an AR-15 rifle - belonged to his parents and were in the home legally, Houston said. Greg Griego, a pastor and former gang member, had an extensive record but was not believed to have ever been convicted of a felony, he said. 
 
 The sheriff said officers believe the teenager shot his mother as she slept at about 1 a.m. on Saturday morning. His brother, Zephania, 9, was awake and distraught and was killed after that. His sister Angelina, 2, was killed while asleep, but his sister Jael, 5, was awake when killed. 
 
 Griego then waited several hours for his father to return home between 5 and 6 a.m. from his job as a security officer at a rescue mission. The teen then ambushed his father, shooting him several times with the AR-15, the sheriff said. 
 
 Officers believe he had planned the attack for at least a week. 
 
 The teenager then loaded guns into the family car and planned to commit many more violent acts, Houston said. 
 
 Reports that he planned to go to a nearby Walmart, shoot people and then die in a shootout with police were accurate, he said. Officers believe the teen had planned the attack for at least a week. 
 
 Houston also said Griego may have intended to kill the parents of his 12-year-old girlfriend. Griego sent the unidentified girl a picture of Griego’s dead mother shortly after she was killed – and before he killed Greg Griego, the Sheriff said. It is not clear whether she will face any charges. 
 
 Instead of killing more people, Griego went to Calvary Church, where he spent several hours with his girlfriend and others. Greg Griego was a former pastor at the church and the family still worshipped there. 
 
 Griego apparently had no plans to hurt anyone at the church. 
 
 While he was there, Griego told church officials several stories about what happened to his family. Police were eventually contacted and discovered the bodies at about 9:15 p.m. Saturday. 
 
 Houston said Griego appeared “surprised” at his arrest and said he shot his family because he was annoyed at his mother. 
 
 He said Griego also told police he regularly played the violent video games “Modern Warfare” and “Grand Theft Auto,” although his parents did not allow it. It was not clear how Griego had access to the games. 
 
 Houston said Griego's demeanor was calm and that he did not appear to show remorse for killing his family. 
 
 "There is no best judgment of motive on our part,” Houston said. “It is beyond any human reasoning or understanding at this time." 
 
 Griego will appear in court Tuesday at 1:30 p.m. and will be treated as an adult. 
 
 New Mexico law allows prosecutors to charge children 13 and over as adults in serious cases, legal experts tell KOB. 
 
 Stay with KOB for continuing coverage. ||||| The New Mexico teenager accused of gunning down five family members over the weekend ambushed his father as he returned home from an overnight shift at a rescue mission, then reloaded his rifles and planned to go to a Wal-Mart and randomly shoot people, authorities said Tuesday. 
 
 A Bernalillo County sheriff's deputy blocks the dirt road that leads to a home where detectives on Sunday, Jan. 20, 2013, were investigating the deaths of five people who were shot to death south of Albuquerque,... (Associated Press) 
 
 Bernalillo County Sheriff Dan Houston prepares for a news conference at the sheriff's headquarters in Albuquerque, N.M., on Tuesday, Jan. 22, 2013, regarding the shooting deaths of five family members... (Associated Press) 
 
 Bernalillo County Sheriff Dan Houston, right, and Lt. Sid Covington answer questions about the shooting deaths of five family members during a news conference at the sheriff's headquarters in Albuquerque,... (Associated Press) 
 
 Bernalillo County authorities are stationed outside a home south of Albuquerque, N.M., on Sunday, Jan. 20, 2013, where two adults and three children were found shot to death. Authorities say a teenager... (Associated Press) 
 
 A Bernalillo County Sheriff's Department crime lab is stationed outside a home south in Albuquerque, N.M., on Sunday, Jan. 20, 2013, where two adults and three children were found shot to death. Authorities... (Associated Press) 
 
 A bouquet of flowers adorns the entrance to a home on Monday, Jan. 21, 2013, where a couple and their three young children were found shot to death south of Albuquerque, N.M. The couple's 15-year-old... (Associated Press) 
 
 Nehemiah Griego, 15, is seen in an undated photo provided by the Bernalillo County Sheriff's Deptartment. Griego is charged with killing five family members on Jan. 19, 2013, including his father, mother,... (Associated Press) 
 
 Instead, 15-year-old Nehemiah Griego texted a picture of his dead mother to his 12-year-old girlfriend, then spent much of Saturday with the girl and her family, authorities said. That evening, he went to the church where Griego's father had been a pastor, and Griego eventually confessed to killing his parents and three younger siblings. 
 
 "The motive, as articulated by the suspect, was purely that he was frustrated with his mother," Bernalillo County Sheriff Dan Houston said. "He did not give any further explanation." 
 
 Houston said Griego had planned the shootings for at least a week, but it's unclear if he ever actually went to a Wal-Mart or why he changed his mind about continuing the attack, which occurred the same day thousands of gun advocates gathered peacefully at state capitals around the country to rally against stricter limits on firearms. The "Guns Across America" events were being held just after President Barack Obama unveiled a sweeping package of federal gun-control proposals. 
 
 Griego told detectives he also contemplated killing his girlfriend's parents, Houston said. 
 
 The sheriff said he didn't know if Griego's contact with his girlfriend avoided further bloodshed. But he said she apparently knew what had happened, and officials are investigating whether she should be charged with failing to report the crime. 
 
 "We know Nehemiah had been contemplating this for some time," Houston told reporters at a Tuesday news conference. Griego apparently had told others of his plans, but whom and when was still under investigation, Houston said. 
 
 The teen waived his right to arraignment in adult court Tuesday on charges of murder and child abuse resulting in death and a judge ordered him held without bond. He was arrested Saturday at his family's home in a rural area southwest of Albuquerque. 
 
 The sheriff's office identified the victims as Greg Griego, 51, his wife, Sarah Griego, 40, and three of their children: a 9-year-old boy, Zephania Griego, and daughters Jael Griego, 5, and Angelina Griego, 2. All appeared to have gunshot wounds to the head. 
 
 According to Houston and charging documents, it all began early Saturday at the family's home, when Nehemiah Griego _ angry and annoyed with his mother _ acted on what he described to investigators as homicidal and suicidal thoughts. 
 
 Houston said the teen shot his mother while she slept at about 1 a.m. with a .22 caliber rifle the parents kept in a closet. He said he killed his siblings after they woke up and became upset, then grabbed a military-style assault rifle his parents owned and waited in the downstairs bathroom to ambush his father as he returned from work at a rescue mission around 5 a.m. 
 
 Griego told authorities he then reloaded the two guns and put them in the family van. 
 
 Houston said he didn't know if Griego actually went to a Wal-Mart, but officers found the two rifles, as well as at least a dozen rounds for the .22 and a handful of rounds for the .223 caliber assault rifle in the van. 
 
 Griego spent most of Saturday with his girlfriend and her family, Houston said. At about 8 p.m., Griego went to Calvary church and told church members that his family was dead. Church officials called 911 and took Griego to his home. 
 
 Griego initially told arriving officers he had come home Saturday morning after spending time at a friend's house to discover his family dead, court documents say. The teen later confessed to shooting his mother because he "had anger issues" and was annoyed with her, the documents say. 
 
 The teen had no history of mental illness and drugs and alcohol did not appear to play a factor, Houston said. He did note, however, that the teen liked violent video games, including "Modern Warfare" and "Grand Theft Auto." He did not say whether he believed the games were a factor. 
 
 Greg Griego was a gang member-turned pastor who had once served at Calvary, one of Albuquerque's largest Christian churches. He had an extensive arrest record from his gang days, but was best known throughout the law enforcement community for his work as a voluntary chaplain. 
 
 A records check by the Children, Youth and Families Department indicated no problems with the Griego family and that Nehemiah Griego had never been in trouble with the law. 
 
 Sheriff's Deputy Aaron Williamson confirmed there was no history of any emergency calls to the home in the recent past. 
 
 "This is beyond any human reasoning or understanding," Houston said. 
 
 "It's horrific. What other words do you use? This is certainly the first time that I have been into a crime scene with this much destruction at one home." 
 
 In addition to the two rifles, there were two 12-gauge pistol-grip shotguns in the home, Houston said. Griego's father taught him to use guns, and they shot together on a regular basis, Houston said. 
 
 The home had a security-style sign outside saying "Home Protected by Smith & Wesson."
– Police near Albuquerque released new details about 15-year-old Nehemiah Griego, who is accused of shooting to death his parents and three siblings over the weekend: Griego shot his mother while she slept about 1am Saturday, say police. Then he allegedly killed his 9-year-old brother, described as "awake and distraught" at the time; his sleeping 2-year-old sister; and his 5-year-old sister, who also was awake. Police say Griego waited for his father to return from work about five hours later and ambushed him with an assault rifle, reports KOB. His father had taught him how to shoot. "The motive, as articulated by the suspect, was purely that he was frustrated with his mother," said Bernalillo County Sheriff Dan Houston. "He did not give any further explanation." Griego texted a photo of his slain mother to his 12-year-old girlfriend, and spent much of Saturday with the girl at a church where his father had been a pastor. It's not clear whether she will face charges. Griego likes violent video games, including Modern Warfare and Grand Theft Auto, but Houston didn't speculate on whether he thought that played a role, reports AP. Griego planned the attack for more than a week, but he abandoned his original intention of killing more people at a local Walmart.