The world's oldest man died at the age of 112 in a nursing home in Tokyo, officials reported Tuesday. Sakari Momoi, who was crowned the world's oldest man by Guinness World Records in August 2014 at the age of 111, died from kidney failure. Momoi was born on Feb. 5, 1903, and was a teacher and a high school principal in Japan. The world's oldest man, Sakari Momoi from Japan, has died in Tokyo at the age of 112.