A Michigan teenager who pleaded guilty to killing his parents was sentenced this week.
Investigators say Marshall Sosby killed his parents for taking away his cell phone, then reported the deaths as a murder-suicide.
Marshall Sosby appeared calm as he walked into a Lenawee County courtroom Friday morning.
Four family members listened as the teen apologized for killing his parents.
"I would like to apologize to everyone I affected by what I have done," Sosby said. "I am very sorry for everything. I screwed up really badly and I wish I had never done it. If I could go back, I would never do it again. I am very sorry."
Sosby pleaded guilty late last year. Friday, he was sentenced to life in prison for murdering his mom and more than 30 years for killing his dad.
He will be in his 50s before he is eligible for parole.