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George Zimmerman Trial: Jury selection enters second week in case of 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, center, arrives in Seminole circuit court during his trial in Sanford, Fla., Monday, June 17, 2013.
AP Photo/Orlando Sentinel, Joe Burbank, Pool

(CBS/AP) SANFORD, Fla. - Prosecutors and George Zimmerman's defense attorneys are returning for a second week of jury selection in Zimmerman's second-degree murder trial.

PICTURES: George Zimmerman in court

READ: Trayvon Martin Shooting: A timeline of events

Defense attorneys are confident they can pick a jury in the Florida county where the neighborhood watch volunteer fatally shot 17-year-old Trayvon Martin in a gated community last year.

Zimmerman is pleading not guilty to second-degree murder, claiming self-defense.

Attorneys resume first-round of questioning Monday of potential jurors about their media exposure to the case that inspired protests nationwide. They've interviewed 41 prospects already.

A potential juror identified as juror H-13 said she believed Zimmerman approached Martin the night of the deadly confrontation.

 "I know Trayvon Martin was walking through that community or that complex and Mr. Zimmerman was doing a community watch and I believe called out to him," H-13 said.

H-13 said she wasn't sure what transpired after that, though "at some point there had to be an altercation between the two of them because Mr. Zimmerman was injured, but I don't know how that happened."

The woman said she believed Zimmerman continued to follow Martin after he was told not to by a non-emergency dispatcher.

Prosecutors and defense attorneys are seeking a pool of 40 potential jurors who have been screened for any influence of pretrial publicity before they move to a second round of questioning.

Attorneys are expected to continue questioning potential jurors until about 4 p.m., when the court will once again take up whether experts who analyzed a 911 call placed the night of the shooting will be allowed to testify, the Orlando Sentinel reports.

The screams in the background of a 911 call, placed by a neighbor, have been the subject of much debate. One state expert claims he heard Trayvon Martin saying "I'm begging you" in the background of the call, though other experts have said the quality of the tape renders it impossible to analyze.

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