This is an extraordinary piece of work called WITHOUT SANCTUARY.
It deals with the lynchings of black people that took place in the U.S.
It is a flash movie made with pictures and postcards. The comment may not be too difficult for you to understand
BUT I MUST WARN YOU:
IT IS EXTREMELY VIOLENT and SHOCKING.
So if you're soft-hearted, you might not want to watch it.
As they say: "The film is not recommended for people of a nervous disposition."