Seattle, Jun19: The King County medical examiner's office in Seattle says two-time United States Olympic equestrian Amy Tryon died of an accidental drug overdose.
The 42-year-old Tryon died on April 12.
KING-TV reports the medical examiner says she died of an acute combined opiate overdose, including oxycodone.
Tryon rode for the U.S. equestrian team at the 2004 Athens Olympics and helped them to a bronze medal. She also competed at the 2008 Beijing Olympics.
The Seattle Times reported that in recent years Tryon suffered knee and back injuries that forced her to cut back on riding and focus on training horses.