"The idea that he was a loner also has been manufactured by the media and those who simply did not know him," the statement said. "He had many friends at Calvary where he spent most of his free time playing basketball or music. Like his father, who was a champion wrestler and coach, Nehemiah also competed in wrestling tournaments throughout the state and country."
The statement noted that several family members were military veterans.
"Pictures of [Nehemiah Griego] being circulated in his dad's old fatigues were part of his interest in someday being a soldier," the family statement noted.
The shooting spree began shortly around 1 a.m. on Sunday, when Griego allegedly snuck into his parents' bedroom while his mother, Sara Griego, was asleep. There he raided the closet where the family kept their guns, and immediately used a .22 rifle to kill her, according to the Bernalillo County Sheriff's Department.
Griego's 9-year-old brother was sleeping with his mother at the time and woke up. When Griego told the boy his mother was dead, the youngster didn't believe him, according to a police report.
"So Nehemiah picked up his mother's head to show his brother her bloody face," the report said. "Nehemiah stated his brother became so upset so he shot his brother in the head."
He then went into his sisters' bedroom, police said.
"Nehemiah stated when he entered he noticed that his sisters were crying and he shot them in the head," the police report said.
The girls were 5 and 2 years old.
The teenager waited for his father to come from his overnight shift working at a nearby rescue mission. When his father walked into the home around 5 a.m., unaware of what had taken place, Griego shot him multiple times with the AR-15 rifle, Houston said Tuesday.
Besides being a former pastor at Calvary Church, Greg Griego worked as a chaplain at a local jail where he counseled convicts. The family was very involved in the church, according to its website.