A 20-year-old man found guilty for his role in the deadly beating of Derrion Albert was not sentenced Monday as planned.
Instead, his defense attorneys for Silvonus Shannon filed a motion for a new trial.
A jury convicted Shannon of first degree murder last month.
Prosecutors argued Shannon kicked the Fenger High School honors student in the head during the September 2009 street brawl, delivering the final blow.
But Shannon's lawyer, Robert Byman, claimed that Shannon himself was a victim, alleging that his client was "dazed and disoriented" after being hit by a heavy piece of lumber.
"He didn't know what he was doing," Byman told the jurors.
The fight was captured on cell phone video, but Byman claimed a bystander blocked the view and no proof existed that Shannon landed on the Albert's head.
Shannon later denied that he intentionally stomped on Albert’s head, as prosecutors allege.
He was the first adult to be convicted in Albert's death and faces up to 60 years for his involvement in the brawl. Others await trial.