PONTIAC, Mich. -

The 21-year-old man who was convicted of being an accomplice in the deadly baseball bat attacks on the Cipriano family says he was wrongfully convicted and plans to appeal.

Read: Tucker Cipriano: My father was a great man

Mitchell Young spoke for more than 20 minutes on Wednesday at his sentencing. He was convicted in June of first-degree murder, felony murder, two counts of assault to commit murder and armed robbery in June.

The April 2012 attack killed Robert Cipriano and injured his wife, Rose, and their son, Sal.

The Cipriano's oldest son, Tucker, pleaded no contest to first-degree murder and was sentenced earlier on Wednesday to life in prison without parole.

Addressing the court, Young said, "The event that brought us all here today was nothing short of an absolute tragedy ... but I am not guilty of the five crimes I am to be sentenced here today for."

Young then went on to say he wasn't given all of the documents and evidence to review that was presented during his trial.

"I was not allowed to properly prepare my defense," Young said.

Young also said he wasn't satisfied with his attorney, Michael McCarthy.

Raw video: Mitchell Young's statement during sentencing

He accused McCarthy of not paying attention to several of the things he had expressed concerned about.

Young pointed out witnesses and a police officer who he said gave contradictory statements during their testimony.

At one point, Judge Shalina Kumar stopped Young and told him he didn't need to elaborate on what his appeal points were at his sentencing hearing. Young said he understood, but still wanted to speak.

Young called the case a "miscarriage of justice."

"I don’t think the jury looked for reasonable doubt, I think they were looking for a reason."

Young expressed thankfulness for the family and friends who had supported him and passed on condolences to the Cipriano family for their loss.

“If there was any way I could change what has happened, I would do it in a heartbeat," Young said.

When it came time for Kumar to issue the sentence against Young, she told Young he should have walked away.

"I absolutely believe you did this, you made decisions to do this," she said. "You need to take a look in the mirror and really take responsibility."

Young was sentenced to life in prison without parole.

Complete coverage: Cipriano Murder trial special section