Jack Warner, the former FIFA vice-president, said he fears for his life as he vowed to reveal every secret of world football’s corrupt body.
Mr Warner, one of 14 men charged with corruption by US authorities last week, said he has documents proving corruption within FIFA .
“I will no longer keep secrets for them who actively seek to destroy the country,” he said.
Mr Warner, in a bizarre political broadcast on TV in his native Trinidad, also said: “I reasonably actually fear for my life.”
He named outgoing president Sepp Blatter as among those involved and said FIFA even tried to influence the 2010 general election in Trinidad and Tobago.
He later told a rally of his Independent Liberal Party: “ Not even death will stop the avalanche that is coming .
“The die is cast. There can be no turning back. Let the chips fall where they fall.
"Blatter knows why he fell. And if anyone else knows, I do.”
Australian police said today they are investigating corruption claims surrounding Mr Warner and Australia’s failed bid for the 2022 World Cup.
Football Federation Australia chairman Frank Lowy was forced to defend his group’s payment of 500,000 Australian dollars to the Confederation of North, Central America and Caribbean Association Football (Concacaf), the regional football federation in North America.
Lowy claims the money was “misappropriated” by Warner, who was then president of Concacaf.
Australia spent millions of pounds trying to clinch hosting rights for the 2022 World Cup, but received just one vote when Qatar secured the rights in December 2010.
The revelations come little more than 24 hours after Mr Blatter finally announced he would be standing down as FIFA president.
Chuck Blazer, the former FIFA executive committee member, has already confessed to corruption in court testimony published on Wednesday.
“I and others on the FIFA executive committee agreed to accept bribes in conjunction with the selection of South Africa as the host nation for the 2010 World Cup,” he said.