The Amanda Knox documentary on Netflix, which debuted last week, is controversial. One of the biggest controversies in the film is about something you might not at first expect.
There has been a lot of negative reaction on social media towards the appearance by freelance journalist Nick Pisa, who worked for the Daily Mail when the story broke and who now reports for The Sun.
There has been a flood of criticism by viewers of his apparent lack of sensitivity towards the case.
This is especially true when the postmortem for Kercher's body suggested that the murder was a "sex game gone wrong" and Pisa wrote it up as a scoop.
The biggest criticisms come from what he says at the end of the documentary, when he blames the police and the prosecution for following "wild theories".
He says: "I think now, looking back, some of the information that came out was just crazy, really, and completely made up."
Rod Blackhurst, one of the directors of the film, was asked by The Guardian about Pisa's views. He responded:
The people who want to cast the stone at Nick are often the same people logging on every morning, keen to read the latest, grisliest titbits from the case.
BuzzFeed UK contacted Nick Pisa for an interview, but he declined. He then asked us to refer to his piece in The Sun, which does not address his comments in the documentary directly.
He was then asked for further comment by email about the comments he made in the documentary and the negative reaction he's had since the documentary was released, but had not responded by the time of publication.