Kiichiro Sato / AP

Maurice Clarett was arrested last week after a highway chase that ended with police using Mace on the former Ohio State running back and finding four loaded guns in his sport utility vehicle, a police spokesman said.

It's no secret, however, that Waknine provided Clarett with a life of luxury from August 2004 to August 2005.

"When I worked with Maurice, he had Hai and a very high-profile lawyer," said Charles Poliquin, who trained Clarett in November and December 2004 in Phoenix. "There are not a lot of guys that want to play pro football who have a team of lawyers and money men backing them up, and, for sure, they had his best interests at heart. But he was living too nice a life. Too nice. He was living in Malibu. Right on the beach. I've been to the house. [Waknine] owned like 10 cars and said, 'Pick whatever car you want.'"

Mango said he has neither the time nor the resources to investigate Waknine, but he found the threatening postcard puzzling.

"It came on a small index card like you use in school or whatever, and whatever language that was on it was actually cut and pasted in the old-fashioned sense, like typed and then cut out and pasted onto it," he said. "And then, obviously, the identity of the sender has been pretty well kept ... they took steps to keep that ...

"I think anything you get where the sender has taken very obvious and extreme and multiple steps to keep their identity sealed, that concerns me," he said. "Maurice has gotten other letters and, quite frankly, so have we. People write notes and might use the N-words, but it's in their handwriting some. Some sign it, even an address. In this case, none of that. There's no way to trace this one."

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