Actress Shannen Doherty, best known for her role in the television series "Beverly Hills 90210," passed away at the age of 53 after a long battle with breast cancer. Doherty was diagnosed with breast cancer in 2015 and had been in remission until it returned in 2019 and spread throughout her body. She played the character of Brenda Walsh in "Beverly Hills 90210" and left the series after the fourth season. However, she later returned to reprise her role for the show's revival in 2008 and 2019. Doherty also appeared in many movies, including "Heathers," "Mallrats," and "Jay and Silent Bob Strike Back."