Who is the protagonist in And Then There Were None??Everywhere i look gives a different answer! plz help!!

A protagonist is not always the hero of the story. He is a
central figure of a story.  It is common for the story to be ABOUT the protagonist.  In
this case.  It was about Lawrence Wargrave, who if far from being a hero.  He loves to
kill. He has always felt a "strong sense of justice" (pg 286).  In the style of "The
Tell Tale Heart", Wargrave has convinced himself that he is justified in the deaths he
has caused, although he has had a sadistic delight in causing death since he was a
child. However, he did not want the innocent to suffer.  He carefully researched each of
his victims.  Each of them was responsible for the death of another person.  He decided
to invite them all to the island because he has been told that he is dying. (pg 291) He
doesn't want to die a slow and painful death.  He wants to go out in a "blaze of
excitement.  I would live before I died" (pg 292).  The whole story is his story.  He
planned it and systematically caused the death of the other nine people. Without
Wargrave, there would be no story.