Cause of death: fall
Primo Michele Levi (Italian: [ˈpriːmo ˈlɛːvi]; 31 July 1919 – 11 April 1987) was a Jewish-Italian chemist, partisan, writer, and Holocaust survivor. He was the author of several books, collections of short stories, essays, poems and one novel. His best-known works include If This Is a Man (1947, published as Survival in Auschwitz in the United States), his account of the year he spent as a prisoner in the Auschwitz concentration camp in Nazi-occupied Poland; and The Periodic Table (1975), a collection of mostly autobiographical short stories each named after a chemical element as it played a role in each story, which the Royal Institution named the best science book ever written.
Levi died in 1987 from injuries sustained in a fall from a third-story apartment landing. His death was officially ruled a suicide, although this has been disputed by some of his friends and associates and attributed to an accident.
Source : Wikipedia