The infamous Rosie Ruiz, who was caught cheating in the 1980 Boston Marathon, has died at the age of 66.

According to an obituary posted on the website of a West Palm Beach funeral home, Rosie M. Vivas, the name she went by later in life, died on July 8 after a 10-year cancer fight.

Ruiz was thrust into the spotlight after ostensibly winning the Boston Marathon, but several red flags caused people to question the then-27-year-old’s victory and record-setting time. Spectators noticed she barely looked to have broken a sweat, and other runners didn’t remember seeing her during the first 25 miles of the race.

While speaking to reporters following the race, Ruiz was unable to answer questions about her training that most competitive runners would know all about.

Journalist Kathrine Switzer, who in 1967 became the first official women’s entrant to run in the Boston Marathon, inquired about Ruiz’s intervals, a common method for runners to track their progress while training and competing, and Ruiz had no idea what they were.

“Rosie Ruiz. The mystery women winner. We missed her at all our checkpoints,” Switzer said at the end of the interview.

Shortly after, according to Time, witnesses reported having spotted Ruiz re-enter the course from the sidelines about a mile away from the finish line. Ruiz was stripped of her medal and Jacqueline Gareau of Quebec, who originally clocked in at second place, was named the winner.

The scandal continued to snowball when the New York City Marathon realized Ruiz cheated in its 1979 race to qualify for the Boston Marathon. She didn’t show up on footage from video cameras set up along the course, and the Boston Globe reported that a woman claimed she rode the subway with Ruiz to the finish line.

Ruiz never owned up to either incident. And according to the Associated Press, Ruiz’s application for the New York City Marathon was too late, but she got in after claiming she was dying of brain cancer.

In 1982, Ruiz spent one week in jail and received five years’ probation after stealing $60,000 from the New York real estate company where she worked. The next year, Ruiz received three more years of probation after getting charged with trying to sell 2 kilograms of cocaine to an undercover detective in Miami.

The West Palm Beach obituary says Ruiz is survived by her brother, Robert Ruiz, her partner of 26 years, Margarita Alvarez, and Alvarez’s three sons.