Sister of Mel Gibson`s ex under suspicion

Los Angeles: There may finally be an answer to the question of how the audio recordings of Mel Gibson and Oksana Grigorieva ended up posted on Radaronline.com.

Several sources confirm that Oksana Grigorieva`s younger sister, Natalie, is suspected of having leaked the audio tapes to the online website and is currently being looked at by authorities. "I suspect that if the authorities look at the sister, they`ll find a wire transfer or a check to her from the website," alleges a source close to the case. "She and Oksana are very close." Another informed source also claims that Grigorieva`s sister was involved in first shopping the audio tapes to various media outlets before finally making the sale to Radar. "All the tabloids said no to the deal because they were asked to purchase the audio tapes hearing them," says another source. If Oksana`s sister is found to have brokered the deal at the behest of her sister, it`s possible that the Russian singer could be found in contempt of court. Grigorieva could also be facing possible extortion charges, based on a text and emails that she sent Gibson. In the text message, Grigorieva wrote Gibson that the reason she recorded him was because "you broke your agreement with me." Grigorieva on Thursday claimed she balked at signing the long form settlement custody agreement because it gave Gibson unsupervised visits with their child. "The statement is completely false. This never happened," counters a source close to the case, adding, "This is the third explanation that she`s offered for why she backed out of the agreement." In a custody hearing before the court, Grigorieva`s lawyer argued that she repudiated the agreement because she felt "coerced" and because she was "misadvised" by the retired judges overseeing the mediation. Representatives for Grigorieva and Gibson could not be reached for comment. Bureau Report