Former Enron executive J. Clifford Baxter, who challenged the company's questionable financial practices and resigned last May, was found dead today in his car -- an apparent suicide from a gunshot to the head. Police uncovered a suicide note but have not released its contents. The Houston, Texas based Enron, an energy corporation, began its public demise in mid-October with the announcement of a $618 million third-quarter loss and a $1.2 billion reduction in the company's equity. The company, once No. 7 on Fortune Magazine's list of the top 500 largest corporations, rapidly descended into bankruptcy on December 2, 2001, the largest in US history. As a result, Enron and its accounting firm Arthur Andersen have been under federal investigation.