Mel Gibson ‘threatened to bury ex in rose garden’

Mel Gibson apparently threatened to bury Oksana Grigorieva, the mother of his love child, in the rose garden of his multi-million dollar mansion.

“Mel made a series of serious and violent threats against Oksana,” RadarOnline.com quoted a source as saying.

“When things in their relationship started going badly and he made the first threats against her, Oksana decided she needed to protect herself.

“She made the recordings and on one of them, Mel is heard telling Oksana, ‘I will bury you in the rose garden,’ which she believed to be a clear reference to killing her,” the source added.

The rose garden threat is on the 30 minutes of tape submitted to a Los Angeles judge in their custody battle, the source said.