A letter sent to Mel Gibson from ex-film collaborator and screenwriter, Joe Eszerthas has hit the web, revealing not only more about Gibson's rage issues, but his continued death threats to ex-girlfriend, and mother of his child, Oksana Grigorieva. According to Kris Herzog, owner of the Navy SEAL Bodyguard Group, The Bodyguard Group of Beverly Hills and former bodyguard for Mel Gibson and Oksana, Gibson has said on numerous occasions that he was going to kill Oksana.

Mel says it to everybody, says Herzog. He hates her, he really hates her.

Herzog, who has referred to Gibson's ex-girlfriend as a sexual sorceress, heard Gibson say, I'm going to kill that f***ing bitch and bury her in the f***ing  garden. Herzog explained that Gibson could have been arrested right there because the threat he made is a felony in the state of California.  

The former bodyguard for the couple said that Gibson didn't want Oksana raising his baby, and it infuriated him. Herzog also said that Gibson believed Oksana had been having sexual relationships with numerous other men, which fueled his death threats. I personally heard Mel Gibson, between 2008 and 2010, threaten Oksana's life multiple times, said Herzog. I believe her life is in danger because Mel Gibson has the financial wherewithal to hire someone to kill Oksana.

While a bodyguard for Oksana, Herzog had resided in the same house and has witnessed her breaking down in tears over Gibson's verbal attacks. Oksana reportedly told Herzog that she thought Gibson was going to kill her. He told me he's going to kill me, Herzog said Oksana had confided in him.

It was Herzog who told Oksana to tape the actor during one of his aggressive rants after Oksana told her bodyguard that she didn't know how to convince her baby's father not to kill her. Then he can't do it because the world knows, said Herzog of Gibson's death threats. He'd be their number one suspect.

Gibson and Oksana's custody battle got ugly, with recordings of Gibson's angry rants being released in February 2010. Besides the tapes released to the public, an incident occurring the month before had Gibson allegedly hitting Oksana and breaking a veneer on her teeth. Gibson faced domestic abuse charges, in which he pleaded no contest.

In August 2011, Oksana and Gibson had reached a settlement in their custody case. Oksana received $750,000 and a house to live in until Lucia turns 18-years-old, reported the Los Angeles Times. The couple have joint custody of their daughter.

The involvement with Gibson and Oksana made Herzog a poster child for TMZ, with paparazzi constantly following him. TMZ had revealed back in 2010 that the bodyguard had criminal charges filed against in 2009. I was falsely accused of non-violent crimes by the paparazzi, stemming from a 2009 non-violent verbal-only encounter with the paparazzi, said Herzog. Herzog returned to court this March where his counts were deemed misdemeanors. A not guilty plea was made by Herzog and his attorneys, and the charges against Herzog were dismissed by the court. Herzog provided the Official Court records from his cases, confirming all charges were dismissed.

The Bodyguard Group has been in the business for years, with Herzog's father founding the Bodyguard Group of Beverly Hills in 1967. Herzog, a U.S. Veteran who employs his fellow U.S. veterans, has worked with celebrities ranging from Paris Hilton to Herman Cain. Herzog's history will be available in the near future, as Herzog is currently taking meetings to discuss his book and movie, along with the rights to his story and the 45-year history of the Navy SEAL Bodyguard Group and the Bodyguard Group of Beverly Hills.

Herzog's book, My True Hollywood Story will be released on Amazon.com this summer. A preview can be found at www.KrisHerzog.com.

The nine-page letter, which reignited the topic of Gibson's rage, was written on April 9 by Eszerthas and obtained by The Wrap. Eszerthas wrote the letter to Gibson because he backed out of making the movie The Maccabees, which he describes as the Jewish Braveheart. The screenwriter expresses his disappointment in Gibson, and goes on to list things you said which appalled me.

One of the claims made by the screenwriter is that Gibson wanted to kill Oksana Grigorieva, mother of his child, Lucia. I'm going to get rid of her. No one will ever know, Gibson reportedly said. I'm going to kill her! I'm going to have her killed! Eszerthas claims that Gibson had befriended two FBI agents (or former FBI agents) and they were going to help you kill her.

Gibson responded to Eszerthas with his own letter, in which he says the great majority of the facts as well as the statements and actions attributed to me in your letter are utter fabrications.