British doctor Thomas Kwan, 53, admitted to attempting to murder his mother’s partner, Patrick O’Hara, by injecting him with poison disguised as a COVID-19 vaccine.

Kwan, motivated by inheritance, posed as a nurse to deliver the injection, causing O’Hara to develop a severe flesh-eating disease.

O’Hara required intensive care and surgery.

Kwan, identified through surveillance footage, had a collection of dangerous chemicals at home.

Though the exact poison remains unidentified, Kwan’s actions left O’Hara with lasting health effects, as reported by ABC News.

Kwan is awaiting sentencing.

Written by Emily Begley