Widely known Youtube channel Edge Of Wonder has made an brilliant information video about Donald Marshall story. Please spread this, because it is beautifully done and it is a nice small video wrapping the key points of his story:

Part 1 is on edge Of Wonder’s own page:

Hey wonderers! For those that are wondering, part 1 is on our .tv platform because the truth gets a bit too hot and it’s too risky to put on YT. Link here if you’re interested: https://edgeofwonder.tv/episodes/15d4c2d0167bfd