Lou Koller, the frontman of the hardcore punk band Sick of It All, dies following a health battle that began in 2024. Rolling Stone reports that in June 2024 he told people that doctors had found a tumor in his esophagus and that he would undergo treatment. The Mirror adds that the diagnosis was adenocarcinoma cancer and describes it as a two-year battle with illness that comes to an end months before the band’s planned 40th anniversary. Across the coverage, both outlets attribute his death to the cancer diagnosed in 2024 and note his role as the band’s leading vocalist. Neither source details the circumstances of his death beyond the timeline of diagnosis and treatment. The reporting centers on the fact that Koller had been undergoing care after doctors detected the esophageal tumor, and that his passing occurs ahead of the band’s milestone anniversary plans.