Aaron Hernandez's attorney acknowledged on Tuesday that his client was at the scene of a killing and saw it happen.

Jurors spent a little more than an hour deliberating after hearing closing arguments in Hernandez's trial later Tuesday afternoon.

"Did he make all the right decisions? No," James Sultan said during his closing arguments. "He was a 23-year-old kid who witnessed something, a shocking killing, committed by someone he knew. He didn't know what to do, so he just put one foot in front of the other."

Attorneys are not under oath and comments made during opening and closing arguments are not to be considered evidence by jurors.

Sultan pinned the killing on Hernandez's co-defendants, Ernest Wallace and Carlos Ortiz. Both men have pleaded not guilty and will be tried later.

Assistant District Attorney William McCauley said Hernandez's behavior after the crime showed that he was involved. 

Sultan pointed out that prosecutors never presented a clear motive for why Hernandez would kill Lloyd, saying they were friends and future brothers-in-law and that there was no evidence he would have wanted Lloyd dead.

"You didn't hear because it doesn't exist," Sultan said. "Does the prosecution expect you to fill in that gaping hole in its case with guesswork, speculation?"