EXCLUSIVE: Out Of Control Mel Gibson Shattered Glass Door With Chair While Screaming At Oksana

Oksana has two witnesses to the immediate aftermath of the event – her mother, and one of Mel’s sons. Both were in the house when the incident happened in December, 2009 and came into the room immediately after, RadarOnline.com has learned exclusively.

This incident is part of the civil and criminal cases involving that are being investigated.

“Oksana has told authorities that she and Lucia were in the master bedroom of Mel’s Malibu mansion when he went out of control,” a source familiar with the situation told RadarOnline.com exclusively.

“She said he was literally foaming at the mouth.”

Oksana was frightened and on the bed holding Lucia, who was one-month-old at the time. She told authorities she tried to cover the baby’s head because she was scared as Mel was losing it.

“Mel grabbed a chair and slammed it into a glass door, which shattered, according to Oksana,” the source said.

The presence of witnesses to the immediate aftermath could help Oksana’s case considerably with authorities, as it adds proof to what she is claiming.

Oksana told authorities that Mel kicked her out of the house and she began to pack but about a half hour later Mel told her she wasn’t going anywhere.

Mel demanded an apology. Oksana says her mother told her not to apologized because she had done nothing wrong. But Oksana, trying to calm the situation, apologized anyway.

She says Mel apologized to her days later.

Mel’s rage is captured on six audio tapes obtained and released exclusively by RadarOnline.com. On the tapes he threatens Oksana, screams, loses control and lapses into profanity-laced tirades.

Oksana’s description of the December event – and the two witnesses to the aftermath – are consistent with how she has described Mel’s behavior all along.

The Russian-born musician says Mel punched her in the head twice on January 6. Her front teeth were severely damaged, with one veneer knocked off and another cracked. She also suffered a concussion, as RadarOnline.com reported exclusively.

Gibson has denied hitting Oksana and his lawyers claim she tried to extort him. The Sheriff’s department confirmed it is looking into that allegation after Mel’s lawyer raised it.