Celebrity | Mel Gibson Ex's Sister Suspected of Leaking Gibson Tapes Natalie Grigorieva shopped recordings to tabloids By Nick McMaster Posted Jul 23, 2010 3:50 PM CDT Copied Mel Gibson's ex-girlfriend, Russian-born singer, songwriter Oksana Grigorieva, talks during a news conference in Moscow, Monday, April 19, 2010. (AP Photo/Mikhail Metzel) Authorities suspect Oksana Grigorieva's sister of leaking recordings of Mel Gibson's rants to RadarOnline.com. Natalie Grigorieva is said to have shopped the tapes to various media outlets, but Radar was the only one that agreed to pay up without hearing them first. "I suspect that if the authorities look at the sister, they'll find a wire transfer or a check to her from the website," a source tells the Hollywood Reporter. The recordings have the family under plenty of scrutiny already: Oksana Grigorieva is being investigated for blackmail. Read These Next Trump may be targeting this city next due to a misleading news report. A pastor's dream factored in the discovery of hiker's remains. There's a vast supply of fresh water under the ocean. Pilot who tried to cut engines won't be going to state prison. Report an error