Did Oksana Try Bribing Mel Gibson of Millions?TMZ is reporting sources have "hard proof" Oksana Grigorieva used tapes of Mel Gibson's explosive rants to attempt to extort him of more than $10 million. In return, she allegedly would have kept the tapes under wraps.

"The sources say there are e-mails and other 'physical evidence' to prove it. As one source said, 'There's a long trail of evidence,' " TMZ writes.

With a legal investigation set to be launched against Gibson, these allegations could turn the fiasco into a messy two-way street -- claims of domestic violence against Gibson, claims of extortion against Grigorieva.