The Breakthrough, the latest murder mystery on Netflix, has viewers wondering if the character of Per Skogkvist is based on a real person. The four-part series is based on a book written by Peter ...

Netflix's The Breakthrough is based on the infamous and real-life double homicide case ... it was revealed that David was a loner and a depressed person with no friends or family.

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He stated that there was a voice in his head that was telling him to kill two people ... In The Breakthrough, most of the characters are based on real-life individuals connected to the murders.