Tooele • The 16-year-old suspected of shooting and killing his mother and three siblings in Grantsville earlier this month saw a judge in adult court for the first time Monday.

Colin Jeffery Haynie answered only standard questions from 3rd District Judge Dianna Gibson. He then was taken away to return to a detention center, where he has remained since the Jan. 17 killings.

Gibson set bail at $4 million — $1 million for each victim. She scheduled the next hearing for Feb. 4.

Haynie is charged with 10 counts: four counts of aggravated murder, a count of attempted aggravated murder and five counts of discharging a firearm. If convicted, he faces up to life in prison.

State law requires that anyone, including juveniles, charged with aggravated murder be tried in adult court.

Charging documents allege Haynie first killed his mother, Alejandra Consuelo, and youngest sister, Milan, 12, after the pair came home from school about 1 p.m.

Prosecutors allege the teen killed two other siblings as they returned home. Alexis, 17, was killed next. Matthew, 14, was gunned down about 5:15 p.m. All were shot in the head, chest or shoulder with a handgun, according to charging documents.

When the suspect’s father, also named Colin Haynie, came home about an hour after the final killing, the teen allegedly shot him in the leg. The pair began fighting, court documents say, and the son hit the father in the head, causing a cut. The father eventually got the gun away from the teen.

The younger Haynie allegedly told his father he wanted to kill everyone in the house except himself, the charging documents allege. The suspect’s father and surviving brother — neither of whom spoke — were in the courtroom Monday as was Grantsville Mayor Brent Marshall.

The defendant was the last person to arrive in the courtroom. When bailiffs walked him out, he was wearing a red sweater, black pants and shackles around his hands, waist and feet.

The teen was represented Monday by attorney Richard Van Wagoner, though it’s unclear whether he will remain on the case. Gibson informed the youth that lawyers will be appointed to represent him through an indigent defense fund.

Gary Searle, the Tooele County attorney’s chief deputy, told Gibson that prosecutors had looked at the state’s criteria for whether to keep a 16-year-old in adult or juvenile detention.

“We believe the best place for him at this time … is to remain in the juvenile facility,” Searle said, without elaborating.

Van Wagoner supported keeping his client in juvenile detention and did not oppose the prosecution request for $4 million bail.

“Whatever the bail amount is," Van Wagoner said, “he won’t be posting bail.”

Outside the courthouse after the hearing, Van Wagoner explained the teen has no assets he can use to post bail or hire his own lawyers.