The man convicted of fatally shooting a Florida teenager during an argument over loud music has been sentenced to life in prison without parole.

Michael Dunn, a 47-year-old white man, was sentenced on Friday for the 2012 murder of 17-year-old Jordan Davis, who was African-American.

The two got into a verbal confrontation in November 2012 after Dunn told Davis and his three friends to turn down the music playing in their car at a gas station. The teens refused. Dunn insisted that he saw Davis with a gun, but no gun was ever found. As a result, Dunn grabbed his legal gun from the glove department of his car and fired 10 shots at the teens, fatally striking Davis before driving away with his financée and grabbing pizza.

"Our justice system works. This case demonstrates that our justice system does work," Judge Russell Healey said at the sentencing, according to NBC News.

Dunn was convicted of first-degree murder for shooting the teen during a retrial earlier this month.

Dunn was also sentenced to an additional 90 years in prison for three convictions of attempted murder along with another 15 years for firing a weapon into an occupied vehicle.

For the first time, Dunn offered an apology to the Davis' family in a brief statement before his sentencing.

"I want the Davis family to know I truly regret what happened," he said, reports CNN. "I'm sorry for their loss. If I could roll back time and do things differently, I would. ... I did what I thought I had to do. Still, I am mortified I took a life, whether it was justified or not."

Davis' father, Ron, applauded Dunn's prison term.

"We may have in this state 'stand your ground' laws but that doesn't allow you as a citizen, when you have a chance to diffuse a situation, for you to be so aggressive," he told CNN. "It's basically saying to people, stop with the shoot first."

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