As Making a Murderer returns, is the obsession with true crime turning nasty?

We can’t get enough of cold-case shows such as Serial, especially when they lead to retrials. But while the genre has gone from lurid gore to upmarket investigations, an exploitative undertow remains‘I didn’t think all of these people would care,” Steven Avery says, in wonder, at the beginning of the trailer for Making a Murderer: Part 2.But people did care; they cared a lot. When the first series of Making a Murderer launched on Netflix in 2015, millions of people around