From Piglipstick

But this isn't the first suspicious Enron death. Flashing back to April 2002, there was this:

(CBS) It may be the biggest outstanding mystery in the Enron story: the death of Cliff Baxter, a former top Enron executive. He'd just agreed to testify to Congress in the Enron case. A congressional source tells CBS news that Baxter wasn't a target in the probe, he was to provide evidence against others. But on the morning of January 25th he was found in his car - shot dead.