TMZ: "Mel Gibson is caught on tape exploding in a rage during a trip to Costa Rica last December, screaming at the top of his lungs ... and now the audio has been released. WARNING: EXPLICIT, FILTHY LANGUAGE. The Wrap obtained the tape from Joe Eszterhas -- the man who wrote the screenplay for "The Maccabees" with Mel. Eszterhas has made shocking allegations that Mel ranted about killing Oksana Grigorieva, hating Jews, and praising the guy who killled John Lennon."