Bosch had also begun working with some of the biggest names in baseball, earning their trust and supplying them with banned substances like human growth hormone, according to baseball officials. In 2009, baseball investigators found evidence that the 12-time All-Star Manny Ramirez had received a banned drug from Bosch's facility.
Fischer said he and Bosch quickly connected—they had attended the same high school, graduating a year apart. At first, Fischer was impressed with Bosch, and said that with his treatments, "the weight started falling off."
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Bosch treated Fischer through 2011 and 2012, even as Bosch cycled through business partners and clinic locations. Fischer, who was looking to leave the "impersonal and spotty" corporate world, saw Bosch's clinic as a business opportunity and in October invested $4,000.
Bosch told him the money would help the clinic get through a "slight cash-flow issue," Fischer recalled. Bosch said finances were tight because "a lot of ballplayers were on hold because of the Melky thing"—a reference to baseball's suspension last summer of Melky Cabrera, then an outfielder with the San Francisco Giants. Cabrera was suspended for 50 games last year after testing positive for an elevated level of testosterone.
As part of the $4,000 deal, Fischer joined Biogenesis as the marketing director and was given keys and alarm codes—"full access to the facilities."
The partnership of Bosch and Fischer soured almost as soon as it began. Bosch rarely went to work and failed to pay employees, Fischer said. The clinic's rent payments were late, and Bosch had stopped paying Fischer the money he owed him.
At one point, when Bosch could not be found and had stopped returning calls, another clinic employee said Bosch had gone to the American League Championship Series "to collect money."
"Bosch was a classic con man, charming at first, a great talker and fantastic at painting a beautiful picture, but in the end unable to deliver the results or back up any of the big talk he pitched," Fischer wrote. "I fell for it, hook line and sinker."
Fischer soon confronted Bosch, who he said refused to back down. "He stood up and walked right up to me and said, 'I'm Dr. Tony Bosch, what are you going to do about it?' "
Fischer wrote: "I saw red. I had two choices—cave his face in," or, he continued, "crumble his little world."
He chose the latter.
On Oct. 30, Fischer went to the office after hours and took a stack of boxes filled with Bosch's files.
The documents included details of Bosch's apparent dealings with major league players, like Braun and Rodriguez. Miami New Times published an article nearly three months later that did not identify Fischer by name. But in subsequent articles, he acknowledged that he was the source of the documents.
Soon after their fallout, Biogenesis went out of business. Initially, Bosch vehemently denied any relationship with Rodriguez and other major leaguers. He has since cooperated with baseball officials, apparently offering them enough evidence for the league to suspend Braun, and probably several other players.
Today, with the focus on Rodriguez's fate, there are no physical signs of the former Biogenesis clinic at the three-story office building where it rented space.
The clinic's name has long been removed from the list of tenants. A maritime law firm next door recently expanded, erasing the last trace of Biogenesis from the office park, if not from the baseball record books.
—Nick Madigan contributed reporting from Coral Gables, Fla.