That night, Ethel Rogers dies of a drug overdose in her sleep. The deaths are initially thought to be suicides or accidents until, after the death of General MacArthur, Judge Wargrave determines that they are actually murders and that the host, U.N. Owen, is most likely the killer. Wargrave further speculates that Owen must be one of the remaining 8, and is following the pattern of the nursery rhyme over the fireplace, "Ten Little Sailor Boys".
The deaths of Ethel Rogers and others are initially thought to be suicides or accidents but are later determined to be murders. Judge Wargrave, after General MacArthur's death, suspects U.N. Owen as the killer.  Wargrave believes that Owen is one of the remaining eight people and that he's following a pattern from the nursery rhyme "Ten Little Sailor Boys".