By Jen Heger - Breaking Celebrity News Assistant Managing Editor

Hollywood screenwriter, Joe Eszterhas, who endured the wrath of Mel Gibson during a bizarre, insane screaming rant has been in touch with the actor's ex-girlfriend, and baby mama, Oksana Grigorieva, Breaking Celebrity News is exclusively reporting.

As previously reported, new audio recordings of Gibson engaged in an epic meltdown have emerged which were allegedly recorded in Costa Rica last December by Eszterhas' son, Nick, in which the devout Catholic can be heard screaming, "f**king c**t" amongst other profanities.

The latest Gibson rant surfaced about two years after Mel was caught in a series of violent voicemails threatening to kill his then-girlfriend Oksana Grigorieva, which Breaking Celebrity News exclusively obtained. Eszterhas alleges that Gibson also threatened to kill Oksana, or have his FBI buddies do it for him.

"Joe has been in contact with Oksana's civil attorneys to discuss the threats that Mel made against her. Oksana hasn't decided yet what legal action if any she plans on taking against Mel, her main concern is their daughter, Lucia, as it always has been," a source close to the situation tells Breaking Celebrity News exclusively. "Joe has been extremely honest and forthright with Oksana's legal team. Oksana was extremely saddened to learn that Mel seemingly hasn't changed. While Mel has never hurt their daughter, she doesn't want Lucia in an environment that is obviously so toxic."

During his custody battle with Oksana, Gibson was diagnosed with a severe bipolar disorder and rage issues, a source close to the actor tells Breaking Celebrity News exclusively. Mel began taking psychiatric medication to cope with his anger issues and he was seeing a psychiatrist during the custody battle and that was how he was able to hold it to