On Monday, the film community was shocked to learn that a stunt performer had died after an accident on the set of Deadpool 2. Joi “SJ” Harris, a 40-year-old racer who was doing motorcycle stunts for the character Domino, played by Zazie Beetz, lost control of her bike while doing a particular stunt for the fifth time, crashing into the Shaw Tower in Vancouver, Canada. It was her first film as a stunt driver. In the wake of her death, seasoned veterans of the stunt community are coming forward—and saying that this tragic result could have been prevented.

“She was a highly qualified motorcyclist racer, but not an experienced stunt person,” veteran stunt coordinator Conrad Palmisano told The Hollywood Reporter. Prior to joining the Deadpool team, Harris was mostly a racer, known for billing herself as the the “first licensed African-American woman in U.S. history to actively compete in sanctioned motorcycle road racing events.”

But her racing background may have hampered her when it came time to do stunts for the film, Palmisano explains. “She rode 300cc cycles. The one she crashed on was 900cc motorcycle—much bigger, more powerful.”

Eye witnesses on the scene at the time of Harris’s crash noted that while doing the stunt, she suddenly began riding unusually fast, which is when she lost control of the bike and crashed into the Tower.

Another veteran stuntperson told T.H.R. that Harris should never have been tapped for the Deadpool job to begin with.

“It absolutely could have been prevented,” the source said. “Joi was totally unqualified and never should have been there or put in that position . . . Joi had never been in a film or done any sort of stunt. She was just a girl from Brooklyn who liked to road race—which was not remotely similar to what was required for the shots. She didn’t have the experience or skills for the job they brought her in for.”

Steve Kelso, a longtime member of the Stuntmen’s Association who’s worked with NASCAR drivers on a number of projects, explained to T.H.R. that Harris’s background as a racer made her unfamiliar with the world of stunt work. Racers learn how to move quickly and avoid crashes; stunt performers learn how to craft stunts that often emulate dangerous situations, but they also learn how to abandon those situations before they become fatal.

Some also believe that Harris was hired over experienced white performers because her skin tone was a closer match to Beetz’s. In the past, studios have been shamed for hiring white stunt performers for black actors, darkening their skin with makeup in a process they call “painting down”—which some say is just a euphemism for blackface. Harris didn’t have the background needed to perform such intense stunts, but there were white female stunt performers with motorcycle experience who could have stepped in, according to T.H.R.’s sources. But the lack of experienced black stunt performers also points to a greater problem: if more black performers were hired, properly trained, and put in through the stunt pipeline in the first place, perhaps tragedies like this could be avoided.

Harris’s death has also sent ripples through the stunt community because it’s the second fatality of the summer. In July, stuntman John Bernecker died after a fall went wrong on the set of the Walking Dead. The back-to-back nature of these fatalities has deeply concerned stunt performers, who often put their lives on the line for the sake of film and TV projects. At the time of her death, Harris was not wearing a helmet, presumably because the character doesn’t wear one in the film. But the decision to completely forgo safety for aesthetic purposes has left some at a complete loss.

“Are there not ways to create a helmet with hair protecting the stunt driver?” one performer wrote in a closed Facebook group, per T.H.R. “A production that’s truly invested in set safety, including all the people involved, would order this done. I can’t say it would have saved her life. However, it would have been one more step in the right direction towards making sure they were doing it all as safe as possible. The movie is on hold and worse of all, a life is lost. It's all sad and for what, matched skin tone? It's heartbreaking.”