I got it wrong, Ornstein wasn't talking about a player, apparently he was just talking about himself... Here's a piece of an article where I read about it:

(The league said that when Payton was interviewed this year about the bounties, he claimed to be unaware of the program, which was contradicted by others who had been interviewed. The investigation found that before the Saints’ season-opening game in 2011 against the Green Bay Packers, Payton received an e-mail from a close associate — believed to be Mike Ornstein, a marketing agent who is a convicted felon — that stated, in part, “PS Greg Williams put me down for $5000 on Rogers.” When Payton was shown the e-mail during the investigation, he acknowledged that it was a bounty on Rodgers, the Packers’ quarterback.)

I don't know how that email proves anything. Gregg Williams put him down for $5000 on Rodgers what? Getting sacked? Throwing an interception? Discount double check?... It's vague at best.