“His mild complaints were always a source of laughter in our family, and we all enjoyed them together. But what was once harmless or even endearing started to harden—he became increasingly critical and irritable. Although this worried me, we partly attributed everything to age, never imagining it could be something worse,” his wife, Jane, told the newspaper.

The report notes that his behavior actually signaled the onset of a deadly illness, according to RIA Novosti.

Following these changes, the 70-year-old man began experiencing seizures and complained of hearing music in his head. A CT scan revealed the presence of brain cancer.

The Sun clarified that he suffered from glioblastoma, a fast-growing and the most common type of brain tumor. Despite undergoing various therapies, including chemotherapy and radiation, the British man ultimately passed away.