Audio experts Tom Owen and Ed Primeau, who analyzed the 911 recordings for the Orlando Sentinel, said they don't believe it is Zimmerman who is heard yelling in the background of one 911 call.

CNN: STORY HIGHLIGHTS

Owen and another audio expert, Ed Primeau, analyzed the recording for the Sentinel using different techniques, and they said they don't believe it is Zimmerman who is heard yelling in the background of one 911 call.

CNN: STORY HIGHLIGHTS

Audio experts earlier this month told CNN that they don't believe it's Zimmerman who can be heard yelling "Help!"

CNN: George Zimmerman charged, hearing expected Thursday

"I consider it an oversight because I don't see anything else that suggests that Mr. Zimmerman has been insincere or dishonest, " he told CNN's Erin Burnett on Friday.

CNN: Judge delays decision on Zimmerman contributions

"Fractionals don't stir up employees and shareholders, " says John Zimmerman , a Wichita, Kans.

FORBES: Magazine Article

"You don't have to form a snake-killing committee to kill a snake, " says Thomas Zimmerman, the plant's UAW chairman.

FORBES: Labor Riddle