A transgender United Airlines flight attendant celebrated after she appeared in a 2020 company Trans Day of Visibility commercial has died at age 25, Colorado authorities confirmed Friday.

Police found the body of Kayleigh Scott in the house where she was living in Englewood, south of Denver, early Monday, Arapahoe County Coroner’s Office senior medical investigator Shannon Sanamo said. She died by suicide, Sanamo said.

Scott in 2021 emerged as a high-profile transgender activist.

A final post on her Facebook page referred to taking “final breaths,” apologized “to everyone I let down” and declared: “To those that I love, I am sorry I could not be stronger.” The post also addressed “Brianna,” saying she was coming to join her.

In the United Airlines commercial titled “United – Kayleigh’s Story,” Scott declared “I am trans and I am proud” and said she was telling her story publicly “not for me but for those out there who are still fighting social norms.” She said, in the commercial, that “my life changed for the better when I came to United as a flight attendant.” She credited loving coworkers for helping her “break free” and said she was “living confidently as my true self.”

Originally from Vermont, Scott enjoyed mountain climbing and skiing in Colorado during her off-hours — often posting selfies taken during those activities on Facebook.

United Airlines spokeswoman Erin Jankowski issued a company statement that read, “We are incredibly saddened by the tragic loss of Kayleigh Scott and extend our deepest condolences to her family, friends and coworkers.”

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