Fredrik Normark is one of many private individuals who have spent a lot of time reading about the case.
- I read a book in 2010 that really made me want to go deeper, he says.
He explains that the riddle now seems to be approaching a solution. But at the same time admits that it comes with a certain sadness.
- It has been such a great interest for so many years. Should it end just for that.
Hear the entire interview in the player above.