Violent Past Exposed! Orlando Shooter's Mom Arrested After Attack

How did Orlando gunman Omar Mateen become a sadistic madman? His own father has insisted there were no signs of the rage that would one day unfold, but RadarOnline.com has learned his family has a violent past. Mateen's own mother, Shahla Mateen, was once arrested and charged with battery for assaulting her husband!

Shahla, 59, was taken into police custody after she attacked her husband, Seddique Mir Mateen, on Dec. 7, 2002, according to court documents exclusively obtained by RadarOnline.com.

READ The Shocking Court Documents

"Victim Seddique Mateen told me that both his wife and he has been arguing and when he went to brush his teeth his wife, the above defendant, started cussing at him and pulled his hair along with pinching his left bicep," the responding police officer wrote in the mother's arrest affidavit.

While it is unclear why the couple was fighting, cops noted that Seddique's injuries were obvious by the time they arrived at the scene.

"The victim Seddique had a visible red mark on his left bicep consistent with being pinched," the document states.

Also according to the paperwork, which was filed in Martin County, Florida, the mass murderer's parents were married for 20 years at the time of the assault. Their four children were asleep at the time of the incident, the report says.

Shahla was arrested at the scene without incident and booked at the Martin County Jail.

Her bond, which she posted sometime later, was set at $5,000.

However, her husband eventually dropped the charges and the case was dismissed.

As RadarOnline.com previously reported, Omar, 29, killed more than 50 people and wounded more than 50 others when he opened fired in a popular gay nightclub in Orlando, Pulse, on Sunday morning.

Story developing.