Zimmerman defense team grills potential jurors as jury selection nears close Defense attorneys had their chance to question the pool of 40 potential jurors in the George Zimmerman trial as the court moves closer to choosing the six jurors and four alternates who will decide the fate of the Florida neighborhood watch captain accused of murder in the shooting death of 17-year-old Trayvon Martin. Defense attorney Mark O'Mara began his line of questioning Thursday morning by asking the potential jurors, "what does defendant mean to you?" O'Mara is representing Zimmerman, who is charged with second-degree murder. O'Mara asked the potential jurors about the "presumption of innocence." He asked potential jurors what they would say if forced to give a verdict right now. "I don't have all the facts, so I don't have a verdict," answered potential juror K-95. O'Mara appeared to take a tougher, more direct line of questioning compared to his counterpart on the prosecution side, Bernie de la Rionda, who questioned the potential jurors on Wednesday. De la Rionda began his questioning asking jurors about their personal lives: their marital status, work history and any extracurricular activities. He also asked jurors if they watched "CSI: Crime Scene Investigation" or "Law & Order," saying it's important to note the difference between "real and make-believe." De la Rionda also asked if the potential jurors had been neighborhood watch volunteers and if it was acceptable for individuals to take the law into their own hands. The prosecutor also asked if potential jurors either owned or had fired guns and if the race or age of Martin was important to any decision they would make. About two dozen jury candidates either owned or had fired guns, and a white man in his 60s said he was a member of the NRA. No one said age and race mattered. They have argued that Zimmerman, a neighborhood watch volunteer for his gated community in Sanford, Fla., profiled Trayvon Martin when he followed the black teen last year as Martin was walking back from a convenience store to the house of his father's fiancee.