The Amazon Factor — William Wise

He had died from natural causes - or so they thought. Even the police didn't bother to investigate - until journalist Alex Carr told them how the man had been murdered. They didn't believe him at first. But someone else did - someone who knew the dead man had stumbled upon a secret that could change the future of world events. Someone who knew that Carr was in on the secret, too. And when Carr narrowly escaped a series of nearly fatal 'accidents,' the terrifying truth became clear: he was next on the killer's list, a killer who would stop at nothing to seal Carr's lips - permanently!