LAKE MARY, Fla. -

George Zimmerman's wife won't press charges against her estranged husband, despite calling police to her father's house Monday, saying the former neighborhood watch volunteer who was acquitted of murder threatened her with a gun.

Lake Mary Police Chief Steve Bracknell said Shellie Zimmerman and her father made the decision after consulting with her attorney.

Bracknell said Shellie Zimmerman called police about 2:30 p.m. from her father's house on Spurcewood Road. In the call, Shellie Zimmerman told dispatchers that George Zimmerman was sitting in his car with his hand on his gun.

"He's just threatening all of us with his firearm," she said. "He punched my dad in the nose. My dad has a mark on his face."

Listen: 911 call

She said George Zimmerman then took her iPad and smashed it.

"He’s in his car and he continually has his hand on his gun and he keeps saying 'step closer' and he’s just threatening all of us," Shellie Zimmerman said in the 911 call, adding that George Zimmerman was "trying to shut the garage door" on her.

"He punched my dad in the nose, my dad has a mark on the nose. I saw his glasses were on the floor," Shellie Zimmerman said in the call. "He then accosted my father then took my iPad out of my hands. He then smashed it and cut it with a pocketknife, and there is a Lake Mary city worker across the street that I believe saw all of it."

The 911 call was placed after a shoving match between Shellie's father and her now estranged husband, George. The couple crossed paths while moving things out of their home.

Hours later, Shellie Zimmerman changed her story and said she never saw a firearm, said Bracknell. For the time being, "domestic violence can't be invoked because she has changed her story and says she didn't see a firearm," Bracknell said.

George Zimmerman claimed his estranged wife was the aggressor.

As of Monday night, no arrests had been made and George Zimmerman is "no longer in investigative detention," according to police. Police are investigating the incident as a domestic battery and have retrieved the home surveillance videos from David Dean, Shellie's father. If they find evidence that a crime occurred, charges could be filed later.

Mark O'Mara, who represented George Zimmerman in his murder trial, said that the argument on Monday stemmed over Shellie moving. George Zimmerman wanted to move on Monday and emotions "bubbled" over when he walked in on Shellie Zimmerman still moving, O'Mara said.

O'Mara also said that George Zimmerman didn't threaten Shellie Zimmerman or her father with a gun, even though Shellie Zimmerman told 911 dispatchers he did. O'Mara said George did have his gun, but that it was holstered under his shirt and stayed there the whole time.

"Look, I think everybody got a little bit out of hand," O'Mara said. "There may have been some pushing and touching. That happens a lot in divorce situations. Silly stuff like pots and pans and dishes get so emotionalized that it overflows."

O'Mara says that George Zimmerman never punched his father-in-law, despite what Shellie Zimmerman said in her 911 call.

"I don’t know what he’s capable of," Shellie Zimmerman told dispatchers, while sobbing. "I’m really scared."

"Nobody saw a gun," said Officer Zach Hudson. "We did not find a gun on his body. We did not find a gun in the house. As of right now, there is no gun."

O'Mara said his client wasn't taken to police headquarters but was being questioned near the house, which is owned by his father-in-law, David Bryant Dean.

Police say they plan to get a warrant and check his truck for the gun. George Zimmerman is still legally allowed to carry a weapon and is free to come and go just like anyone else.

Shellie Zimmerman filed for divorce last week. In the divorce petition, Shellie Zimmerman says she and her husband separated a month after Zimmerman was acquitted of any crime for fatally shooting Trayvon Martin.

Since being acquitted, George Zimmerman has been pulled over twice for speeding. His acquittal led to protests nationwide.