BRIGHTON, Colo. - Prosecutors say William Dean Otto, the man accused of killing two teenagers and burying their bodies last August, was convicted of murder Tuesday.
According to the arrest affidavit, Otto confessed to shooting and killing 16-year-old Gustavo "Danny" Espinosa-Gamboa and 15-year-old Jonathan Gonzalez.
He pleaded not guilty in Adams County Court in December.
The 43-year-old Otto was found guilty of two counts of first-degree murder, four counts of contributing to the delinquency of a minor, one count of tampering with evidence and one count of sexual exploitation of a child.
According to evidence presented during the trial, young people frequently went to Otto’s Thornton home where he supplied them with marijuana and alcohol.
On Aug. 9, Espinosa and Gonzalez went to Otto's house to confront him about a video in which Otto had propositioned one of them for sex. Otto told police they wanted $20,000 from him and Gonzalez had gotten a knife from his kitchen, prompting Otto to grab his gun and shoot each of them in the head.
Adams County Chief Deputy District Attorney Tim McCormack told the jury that this was an execution-style killing with both victims shot in the head at close range.
After the murders, Otto went to work and later bought supplies to clean his apartment, remove bloody carpeting and cover up his crime, police said. He loaded the bodies into his truck and drove to Sedgwick near the Nebraska border where he buried them, burning other evidence at his family’s farm.
Prosecutors said Otto called his employer and confessed. He turned himself in to officers on Aug. 10.
He is scheduled to be sentenced Friday in Adams County District Court.