Oksana Grigorieva has told law enforcement authorities probing Mel Gibson for domestic abuse that she once witnessed the Oscar-winning actor/director hit his youngest son Tommy, RadarOnline.com has exclusively learned.

The Russian musician, 40, is also claiming that Mel admitted throwing a television at his ex-wife, Robyn, at one stage during their 29-year marriage.

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• Komsomolskaya Pravda
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