Suicide or MURDER

         Antony Marston.  Dead in a moment.  He drank, and fell, seemed to chock, but he had blue lips and a purple face.  Dr. Armstrong figured out that there was poison in his glass, very likely Potassium Cyanide.  He checked the soda and the whiskey, (drink Marston had) and both were unpoisoned.  The witnesses knew the drinks had not been poisoned, and the author wrote, "The drinks themsleves were untampered with.  They had all seen Anthony Marston go across and help himself.  It followed therefore that any Cyanide in the drink must have been put there by Anthony Marston himself." (And Then There Were None, 70)  The only possible causes of death seem to be the Cynide, unless he really choked, but that is very unlikely.  Was it really suicide though, there was one person out of the room?
          Mrs. Rogers was asleep in her bed, or so it seems.  Maybe, she faked being ill and passing out, and planned and went though with the murder.  She could just have come back to the room before her husband checked on her.  Or, possibly her husband was working alongside her?  Another possiblility, if it were really murder, would be Emily Brent because she always seems so calm.  Also, she does not like how fancy and different young people are.  Infact, Marston was the youngest, and the had the best health, out of all the people there.  Philip Lombard could be the murderer because he let so many natives die to save himself, and did not feel guilty.  He could very easily have decided that  he did not like Marston, and wanted to get rid of him.  Another suspect would be Vera Claythorne because her freeking out over the death could just have been an act.  Maybe, an unknown person, like the owner of the island, wanted him dead?  However, not one person is not a suspect, not even the dead one.
          This man's death caused a change in scene, which Mr. Rogers found.  In the story, Rogers noticed, "'That's a rum go!  I could have sworn there were ten of them.'" (And Then There Were None, 74)  He thought he had seen ten small Indian boy statues.  One guest gone, and one Indian boy, and in just the same way, choking.