OGDEN — A 16-year-old West Point boy already convicted in juvenile court of murdering his two younger brothers has now been convicted of aggravated assault in adult court.

Aza Ray Vidinhar, who turns 17 in April, pleaded guilty Tuesday in Weber County's 2nd District Court to assault by a prisoner, a third-degree felony, after a competency review determined he was competent to stand trial.

On Nov. 1, while housed at the Mill Creek Detention facility in Ogden, Vidinhar attacked a fellow inmate with a broom. Because he had already been certified as an adult in his murder case, the assault charge was automatically filed in adult court.

When he is sentenced on March 23, prosecutors will recommend that his sentence run concurrent with the sentences he is already serving for his murder convictions.

On May 22, 2013, Vidinhar stabbed his younger brothers Alex Vidinhar, 10, and Benjie Vidinhar, 4, to death in their West Point home. In an unusal plea deal in 2014 that was believed to be the first of its kind in Utah, Vidinhar pleaded guilty to one count of murder in juvenile court and one count of murder in adult court.

Under the deal, Vidinhar would have remained in juvenile detention until he was 21, unless he failed to follow through with treatment or caused problems, at which time he would be transferred into the adult system.

Once he completed his time in the juvenile system, Vidinhar was to be "officially" sentenced to 15 years to life in the adult system. At the time, his attorneys said they planned to ask the Utah Board of Pardons and Parole for an early review hearing

Since the assault, Vidinhar has been held in the Weber County Jail.

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