health programs. Al Joyner replaced Bob Kersee as her coach, and he changed her training program to include more lower body strength training exercises such as squats and lunges. In a 1989 story for which he was purportedly paid $25,000, Darrell Robinson, a former teammate of Griffith Joyner, claimed that he sold her 10 mL of growth hormone for $2,000 in 1988. He said Joyner told him: "if you want to make $1 million, you've got to invest some thousands." Robinson claimed to have received steroids from coach Bob Kersee and said he saw Carl Lewis inject himself with drugs he believed to be testosterone. Robinson never provided any evidence for his allegations and was shunned by the athletics community, leading to the premature end of his career. After the 1988 Olympics, Griffith Joyner retired from competitive track and field, just before the introduction of mandatory random drug testing in 1989. She was repeatedly tested during competition and passed every test. After her death in 1998, Prince Alexandre de Merode, chairman of the International Olympic Committee's medical commission, claimed that Griffith Joyner was singled out for extra, rigorous drug testing during the 1988 Olympic Games following rumors of steroid use. De Merode told The New York Times that Manfred Donike, who was at that time considered to be the foremost expert on drugs and sports, failed to discover any banned substances during that testing. The World Anti-Doping Agency was created in the 1990s, removing control of drug testing from the IOC and De Merode. De Merode later stated: "We performed all possible and imaginable analyses on her. We never found anything. There should not be the slightest suspicion." Personal life Griffith's nickname among family was "Dee Dee". She was briefly engaged to hurdler Greg Foster. In 1987, Griffith married 1984 Olympic triple jump champion Al Joyner, whom Griffith had first met at the 1980 Olympic Trials. Through her marriage to Joyner she was sister-in-law to track and field athlete Jackie Joyner-Kersee. Griffith and Joyner had one daughter together, Mary Ruth Joyner, born November 15, 1990. Death On September 21, 1998, Griffith Joyner died in her sleep at home in the Canyon Crest neighborhood of Mission Viejo, California, at the age of 38. The unexpected death was investigated by the Orange County Sheriff-Coroner's office, which announced on September 22 that the cause of death was suffocation during a severe epileptic seizure.