Bill Lerach was corporate America's worst nightmare. If there was anyone who could actually scare a CEO, he was the man. As an attorney who made millions suing companies on behalf of shareholders, he was known as "The Doberman" at the law firm Milberg Weiss, and he was proud of the title.

When I first met him in 2001, he was at the top of his game, almost giddy with the amount of potential litigation before him as the tech bubble burst. I had rarely met someone so committed and passionate.