Koller, who co-founded the celebrated band in 1986, had been battling cancer of the esophagus Lou Koller, the singer and co-founder of New York hardcore band Sick of It All, has died after a battle with cancer, his bandmates announced. Koller was 59. In a social media post on the band’s Instagr...

Source: [Guardian World](https://www.theguardian.com/us-news/2026/jul/25/lou-keller-sick-of-it-all-dies-aged-59)

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