A Tucson man who pleaded guilty to manslaughter for a crash that killed his older brother was sentenced to three years in prison Monday.

Adam Acorn, 23, was driving east on East Sixth Street when he missed a curve near North Country Club Road and struck a tree on Sept. 2, 2011. Nicholas Acorn, 23, the front seat passenger, was taken to a hospital, where he later died. Three other passengers were also injured.

The five adults were on their way home after spending the night hanging out and drinking on North Fourth Avenue and in downtown, according to court documents.

Adam Acorn called his brother a wonderful chef and said the two had plans to open a restaurant together.

He said every day he feels pain and remorse for causing his brother's death.

"My mission in life is to redeem myself and to make the best man I've ever known proud of me," Adam Acorn said, referring to his brother.

Kevin Acorn, the father of the brothers, said although he agreed that his son should be punished, he did not agree with the sentencing terms of the plea agreement.

"We don't see how sending him to prison is going to be helpful," Kevin Acorn told Pima County Superior Court Judge Howard Fell. "In our opinion, Adam is already serving a life sentence."

Adam Acorn also pleaded guilty to aggravated assault, endangerment and driving under the influence in February 2013. He also was sentenced to three years' probation after his release from prison.

Contact reporter Veronica Cruz at vcruz@azstarnet.com or at 573-4224

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