WASHINGTON -- Klaus Eberwein, a former Haitian government official who was expected to testify against alleged Clinton Foundation corruption and malpractice next week, has been found dead in Miami via gunshot wound to the head.

The death was ruled a suicide. Eberwein was 50 and reportedly told acquaintances he feared for his life for his fierce criticism of the Clinton Foundation.

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Eberwein was due to appear next Tuesday before the Haitian Senate Ethics and Anti-Corruption Commission where he was widely expected to testify that the Clinton Foundation misappropriated Haiti earthquake donations from international donors.

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He had served as director general of the Haitian government's economic development agency, Fonds d'assistance économique et social, for three years.

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According to Eberwein, a paltry 0.6 percent of donations granted by international donors to the Clinton Foundation with the express purpose of directly assisting Haitians actually ended up in the hands of Haitian organizations. A further 9.6 percent ended up with the Haitian government. The remaining 89.8 percent – or $5.4 billion – was funneled to non-Haitian organizations.

"The Clinton Foundation, they are criminals, they are thieves, they are liars, they are a disgrace," Eberwein said at a protest outside the Clinton Foundation headquarters in Manhattan last year.

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According to the Haiti Libre newspaper, Eberwein was said to be in "good spirits," with plans for the future. His close friends and business partners are shocked by the idea he may have committed suicide.

"It's really shocking," said friend Gilbert Bailly. "We grew up together; he was like family."

The Haitian government issued an official notice thanking Eberwein for his service and mourning his untimely death.