(KCEN) -- George Zimmerman is back in the news, this time for allegedly punching and then threatening his estranged wife's father with a gun.
Shellie Zimmerman called 9-1-1 Monday morning.
She said George was inside the house with a gun and had punched her father in the face.
She also claimed he threatened other family members.
This incident comes just a few days after Shellie filed for divorce.
Zimmerman was placed in investigative detention as a routine procedure.
He was later released and is cooperating with the investigation.