premise: On 10 January 2016, English singer, songwriter and actor David Bowie died at his New York City apartment, having suffered from liver cancer for the previous 18 months. His death occurred two days after the release of his twenty-fifth studio album, "Blackstar", which coincided with his 69th birthday.
hypothesis: David Bowie died after succumbing to a year and half battle with liver cancer.
reason: David Bowie passed away from cancer related illness in his liver after an 18 month battle.