And Then There Were None - Order of Characters Death and How They Die

Anthony Marston
first - dies of poisining, chokes to death
Mrs. Rogers
second - dies in her sleep
General MacAruther
third - hit on the back of the head with something hard
Mr. Rogers
fourth - back of head chopped with a chopper
Emily Brent
fifth - injected with a hypodermic needle of potassium cyanide
Justice Wargrave
sixth - "shot in the head" - didn't really die
Dr. Armstrong
seventh - drowned in the sea
William Blore
eighth - head gets crushed by a marble bear clock
Philip Lombard
ninth - Vera shoots him
Vera Claythorne
tenth - hangs herself