WEST POINT -- The bodies of two boys found dead in a West Point home on Wednesday suffered multiple knife wounds, police say.
The 15-year-old boy who was missing after his mother found her 4-year-old son dead inside her home is being held in Farmington Bay Youth Center awaiting formal charges, the sheriff said.
During a news conference Thursday morning, Davis County Sheriff Todd Richardson said officers were called to the house on the block of 25 North and 1660 West in West Point at 7:30 p.m. Wednesday by the mother, who found her young son dead and presumed her other two sons were missing.
When officers arrived, they found the body of the woman's 10-year-old son in the basement. Both boys had suffered multiple "penetrating knife wounds," Richardson said.
The State Medical Examiner's Office is conducting autopsy on both boys to determine the exact cause of death, Richardson said.
The 15-year-old was found in Layton by Layton police close to midnight, Richardson said.
He had been presumed missing, and officers from multiple jurisdictions were looking for him as a person of interest Wednesday night, Richardson said.
The 15-year-old has been identified as Aza Vidinhar. He was taken to a local hospital for an evaluation before being placed in custody, Richardson said.
The teenager is considered the only suspect in the case.
Investigators and the Davis County Attorney's Office are reviewing the case for possible charges. Another news conference will be held later Thursday.
Richardson asked the public and media to give the family time to deal with the tragedy.
He said the father is in the military and had been deployed somewhere in the United States, but did not know where.
"No one was expecting this to happen," Richardson said after the news conference.
Vidinhar had run away from his home three years ago, and it took officers almost 7 1/2 hours to find him.
His parents had six children, four of whom were adopted, said family friend and neighbor Lindsey Caballero, adding the parents are sweet, kind and loving.
The 15-year-old was the oldest and a biological son of the couple. The victims were both adopted, Caballero said.
The family lives in an adobe ranch-style house with a basketball hoop in the driveway. Detectives were inside the garage Thursday taking video.
Neighbors had set up a makeshift memorial at the foot of the mailbox with colored balloons, stuffed animals and flowers.
"I'm still in shock," neighbor Karin Jackson said. "This is a wonderful neighborhood, and the kids are usually outside playing."
Neighbor Ann Durrwatcher called the family "picture perfect" and said the 15-year-old kept to himself. He was not often seen playing with his younger brothers, but when he ventured outside, he was "out running around the block," Durrwatcher said.
"They were a really happy family."
The Associated Press contributed to this story.