SAN FRANCISCO — A 46-year-old Texas man died of an apparent heart attack Sunday in the frigid waters of the San Francisco Bay just moments after the start of the Escape From Alcatraz Triathlon, race officials said.
"We have reason to believe the gentleman suffered from a massive cardiac event as he entered the water and began the swim," race officials said in a statement.
The race was held three months earlier than previous years and in far colder waters, but organizers said the temperature did not contribute to the death.