Whose death was Justice Wargrave accused of being responsible for? $($give name and situation$)$

Whose death was Vera Claythorne accused of being responsible for? $($name and situation$)$

Whose death was Dr$.$ Armstrong acccused of causing? $($name and situation$)$

Why did General Macarthur cause the death of Arthur Richmond? $($his motive$)$

Why did Emily Brent fire Beatrice Taylor? What ended up happening to her?

By the end of chapter $8$ who are two people who have died? For these two, how are their deaths similar to what the poem$/$nursery rhyme says? Who deaths were they accused of$?($names and situations$)$

When Armstrong, Blore, and Lombard carefully search the island, what do they find?