Alan Thicke's mother-in-law has been charged as the mastermind behind the March disappearance of her Dutch husband, who was found brutally murdered a week after he was reported missing.

The mother of the ex-Growing Pains star's third wife, Tanya Callau, is accused of orchestrating the gruesome slaughter of her husband, Petrus Jacobus Geradus Dekker, in Santa Cruz, Bolivia.

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The man was found about 1,100 yards from the couple's $3 million, 1,400-acre cattle ranch.

According to The National Enquirer, a local worked confessed to law enforcement authorities that Thicke's mother-in-law Miriam, 66, had paid him $4,000 to make her husband "disappear."

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“Alan is shocked by the news and deeply troubled by what may have happened,” a source told the magazine.