George Zimmerman Trial: Jury selection enters fourth day in trial of man accused in Trayvon Martin killing

George Zimmerman, right, leaves the courtroom during a recess, with his attorney Mark O'Mara, in Seminole circuit court on the first day of his trial, in Sanford, Fla., Monday, June 10, 2013. Zimmerman is accused in the fatal shooting of Trayvon Martin.(AP Photo/Orlando Sentinel, Joe Burbank/Pool)
Joe Burbank
George Zimmerman, right, with jury consultant Robert Hirschhorn, responds to questions from Judge Debra Nelson about the jury selection process in Seminole circuit court during his trial, in Sanford, Fla., Wednesday, June 12.
AP Photo/Orlando Sentinel, Joe Burbank, Pool

(CBS/AP) SANFORD, Fla. - After three days of trying to seat a jury, prosecutors and attorneys for George Zimmerman have interviewed two dozen potential jurors but are still 10 short of being able to go into the next round of questioning.

PICTURES: George Zimmerman in court

READ: Trayvon Martin Shooting: A timeline of events

Attorneys entered the fourth day of questioning jury candidates Thursday about what media stories they had been exposed to about the neighborhood watch volunteer's fatal shooting of 17-year-old Trayvon Martin during an altercation in a Sanford gated community last year.

They need 30 potential jurors to get past the initial round of interviews so they can ask them more in-depth questions about their views and life experiences. Four potential jurors were dismissed Wednesday, raising the total of jury candidates who have been disqualified to 75.

At the start of questioning Thursday, 20 potential jurors were in the pool of candidates to be interviewed in the next round.

The identities of potential jurors are being kept secret in the case, and potential jurors are being referred to only by number.

A potential juror questioned Thursday, "E-75," said he didn't know much about the case, and that he's heard differing viewpoints about the altercation through Facebook threads. "They would say [Zimmerman] hunted [Martin] down in his car and he got out and tackled him to the ground and shot him," the potential juror said. "...Other people would say, 'No, it was Trayvon that came up to George Zimmerman, and George Zimmerman was just defending himself.'" Attorneys need to find six jurors and four alternates. In Florida, 12 jurors are required only for criminal trials involving capital cases, when the death penalty is being considered. Attorneys had interviewed 24 potential jurors by the end of the third day of selection, including 10 Wednesday. A total of 20 have been held over for the next round of questioning.

Among those interviewed was a white man in his 20s who left the courtroom without being asked questions by defense attorneys after he gave answers to prosecutors indicating he wouldn't be impartial.

The juror, known as "R-39" because potential panelists can be identified only by their numbers, said that "murder is murder," even if it's self-defense. Zimmerman, 29, is pleading not guilty to second-degree murder, claiming he shot Martin in self-defense.

Complete coverage of the George Zimmerman-Trayvon Martin case on Crimesider