"All of those factors converged together and resulted in the fatal heatstroke," Perper said.

But Perper spent the bulk of his 30-minute news conference focusing on ephedrine, the active substance in the plant ephedra. Though common in supplements, Perper said they're too risky for athletes.

"I would like to hope that this very unfortunate and tragic death would prompt perhaps the baseball association and other athletic groups to ban them from their practice," he said.

Perper, who interviewed the player's family and Orioles officials, said he was told Bechler took three tablets each morning of Xenadrine RFA-1, a weight-loss drug that contains ephedrine.

Cytodyne Technologies, which makes Xenadrine, noted that the recommended dosage for the drug is two capsules twice a day.

"Physicians warn that many adverse events related to ephedra are due to people taking more than the recommended dosages," the company said in a statement. "Xenadrine has been the subject of numerous clinical trials on people, which have conclusively demonstrated that the product is safe and effective when used as directed."

A bottle of Xenadrine was found in Bechler's locker after he became ill and shown to paramedics, Perper said. The contents couldn't be analyzed because the bottle was inadvertently thrown away by someone with the team, he said.

"They figured it's not important," Perper said.

Major league teams have cautioned players in the past about the dangers of ephedrine. Medical personnel with the New York Yankees and San Francisco Giants were among those warning players anew Tuesday about the risks.

In addition, the Yankees left an article entitled, "The Effect of Heat on Athletes," on every player's locker room seat.

Orioles team physician Dr. William Goldiner said he hopes the coroner's findings trigger a baseball ban.

"This is not just a problem of Major League Baseball," Goldiner said. "This is a problem of over-the-counter supplements that are dangerous, and they are unregulated to the point where you don't even know what's in some of these things."

A native of Medford, Ore., Bechler was a third-round draft pick by the Orioles in 1998. He made his major league debut last September and was expected to begin this season with the club's new Triple-A affiliate in Ottawa.

Bechler and his wife, Kiley, were expecting their first child in April. She visited camp Tuesday and met with team officials but left without speaking to reporters.

The 6-foot-2 Bechler had battled a weight problem since joining the Orioles organization and weighed 249 pounds Friday, 10 pounds above his listed weight. Struggling with his conditioning, he was unable to complete running drills Saturday and was scolded by manager Mike Hargrove.

Teammate Matt Riley said Bechler later acknowledged he had failed to train properly during the offseason.

"He was really distraught," Riley said. "He was like, `I messed up. I want to change.' He wanted to change his work ethic."

The mourning Orioles resumed drills Tuesday at Fort Lauderdale Stadium, where the center field flag was at half staff, and on a cloudless day the gloom slowly began to lift during the workout.

Coach Rick Dempsey clapped his hands and shouted encouragement, and there was even an occasional joke exchanged behind the batting cage.

"We wanted to keep people busy and try to fill the day," Hargrove said. "I think it was a good decision."

For Hargrove, the challenge of resuming a routine was painfully familiar. He was manager of the Cleveland Indians 10 years ago when two of their players, Tim Crews and Steve Olin, died in a boat crash during spring training.

"Every circumstance is different," Hargrove said. "What we're having to go through is not nearly as difficult as what Kiley and the rest of the family are having to go through."