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A 35-year-old Utah man pleaded guilty Tuesday to aggravated murder, admitting that he shot and killed his ex-girlfriend's stepfather last October.

Angelo Seth Carrasco pleaded guilty to the first-degree felony charge in 5th District Court in connection with the death of 44-year-old Shawn Multine. Charges of aggravated burglary and aggravated assault were dismissed as part of a plea deal, according to court records.

Carrasco now faces two possible sentences: an indeterminate 25-year-to-life prison term or life in prison without the possibility of parole. Judge Keith Barnes will sentence the man following a two-day hearing beginning April 21.

The defendant admitted in plea agreement documents that he forced his way into a home on Oct. 21, 2014, and shot Multine once in the torso with a Remington Model 700 .270 rifle.

Carrasco was one of three charged in connection with Multine's death. Carrasco's ex-girlfriend, 19-year-old Clarissa Bulletts, was recently sent to prison after she pleaded guilty to second-degree felony manslaughter, admitting in court records that she "recklessly caused" her 44-year-old stepfather's death.

Police believe Bulletts drove Carrasco and another man, Eric Albert Rodriguez, to the home and provided the gun, which had been kept in her trunk.

The woman then tried to lure Multine from his home via a text message, according to a probable cause statement filed in court. When that didn't work, police say she remained in the area, and after the shooting, drove Carrasco and Rodriguez to another location.

Rodriguez is accused of also trying to lure Multine from the home and, when that did not work, yelling for Multine to come outside the home as Carrasco allegedly broke into the house and fired the gun.

Rodriguez, 31, is charged with first-degree felony murder and aggravated burglary, along with second-degree felony obstructing justice. He is scheduled to go to trial in April.

Iron County Attorney Scott Garrett said earlier this month that during Bullett's preliminary hearing there was testimony that she had told Carrasco that her stepfather had molested her. That may have been the motive for the shooting, Garrett said.