Shellie Zimmerman, who filed for divorce last week, called police in the Central Florida community of Lake Mary shortly after 2 p.m. Monday. She had called 911 and claimed that he had a gun and made threats.
"I don't know what he's capable of," she says on the 911 call, her voice shaking before she begins to cry. "I'm really scared." Shellie then tells the operator that George punched her father, causing her dad's glasses to fly off, and has taken her iPad and smashed it.
George Zimmerman was placed in "investigative detention" then released after his wife and her father declined to press charges.
"We have no victim, no crime," says police Chief Steve Bracknell.
In July, a jury found Zimmerman not guilty of second-degree murder in the February 2012 shooting of Martin, an unarmed teenager, in a case that sparked widespread protests and triggered a nationwide debate over stand-your-ground laws and gun control.
Zimmerman's wife of six years Shellie, who stood by him during the trial, filed divorce papers after telling ABC News about the strains on her marriage from the highly publicized case.
Reporting by STEVE HELLING