A potential juror who admitted he thought George Zimmerman was innocent was questioned for more than an hour Monday by the prosecution.

Many people watching the ongoing George Zimmerman trial have asked us: Why bother to continue questioning a potential juror who has already formed an opinion on the case?

We asked one of our legal analysts, Vanessa Braeley with NeJame Law, about the strategy behind the lengthy questioning of a potential juror who will most likely not make it to the next round.

"If the state or defense wants to strike a juror based on a reason, it's called a 'for cause' strike," Braeley explained. "They don't want to use any of their peremptory strikes, because those don't really have to have a reason. Those are important. You want to preserve your peremptory strikes for situations where you're really going to need them."

Each side gets 10 peremptory strikes to use during the selection process. Those strikes cannot be used during the first round of pre-publicity voir dire questioning.

After six days of jury selection, 32 jurors were retained, and lawyers only needed eight more to fill their desired pool of 40 before moving on to the next round.

"The pace that we're taking is a lot faster than I figured that it would be," Braeley said. "Initially the state, defense and everybody involved thought that it would take a couple weeks for jury selection. We are moving a nice pace."

Only six jurors and four alternates need to be seated for the Zimmerman trial, since he was not charged with a capital crime. If convicted of second-degree murder, Zimmerman would face 25 years to life in prison.