The man convicted in the deadly Bristow, Va., accident that killed a nun was sentenced Friday to 20 years in prison.

Police said Carlos Martinelly-Montano, in the United States illegally, was drunk when he slammed his car into another car in 2010. The crash killed Sister Denise Mosier and injured two other nuns. He was convicted of felony murder in October -- a conviction his attorneys said they plan to appeal -- and pleaded guilty to driving while intoxicated and driving without a license.

In court Friday, Montano pleaded at length for mercy, New4's Julie Carey reported. He told the judge he has reformed in prison, found God and hopes to become a pastor.

"I'm extremely sorry for the destruction and harm I've put the sisters and their families through," Montano said. "I feel horrible about myself for what I have done. I take full responsibility for my actions and I accept my penalty."

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