Authorities have charged a man in the 2011 shooting deaths of a retired couple in Utah, reported.

Logan McFarland, 26, was charged on Thursday in 6th District Court for the murder of 70-year-old Leroy Fullwood and 69-year-old Dorothy Fullwood, whose bodies were discovered in their Mt. Pleasant home on Dec. 31, 2011.

Prosecutors in Sanpete County filed the charge against McFarland one day after he was sentenced up to 56 years in prison in Nevada for a kidnapping, robbery, and botched carjacking at a casino that occurred on the same day of the murders.

McFarland and his girlfriend, Angela Hill, 27, attempted to steal a woman's car outside of a West Wendover casino. They were both charged with burglary and robbery.

According to The Las Vegas Review-Journal, McFarland will need to serve at least 21 years in prison until he is eligible for parole.

During his court appearance on Wednesday, he issued an apology for his actions.

"I know what I did is wrong," McFarland said, The Elko Daily Free Press reported. "I understand my mistakes. All I can do now is go to prison and make myself better, and that's what I'm going to do. I'm sorry to the people I've hurt. I'll understand if they can never forgive me for what I did, but I hope they can. I know it's going to take me a long time to forgive myself."

McFarland's defense attorney, Gary Woodbury, argued in court that his client used to be a "good little Mormon boy" before getting involved with methamphetamine, leading him to a life of crime.