A U.K. rock singer who goes by the name Zion died from a “catastrophic brain injury” caused by the AstraZeneca COVID-19 vaccine, an inquest concluded. The 48-year-old man from Alston in Cumbria,U.S a county in North West England, developed an “excruciating” headache on May 13, 2021, eight days after receiving the AstraZeneca vaccine.

Although he took painkillers, Zion’s headaches increased in severity and four days later, his speech was impaired and he started having seizures. Zion died May 19, 2021, despite emergency surgery to try to treat his “vaccine-induced immune thrombotic thrombocytopenia,” which causes swelling and bleeding in the brain.

After his death, his fiancée, 39-year-old Vikki Spit, said she had spent only one night apart from him in their 21 years together and that her life was “smashed into a million pieces” by his death, according to the Daily Mail.

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