IIRC prisoners died worldwide of heart attacks in the span of a few hours. The cops do mention the possibility of it being a coordinated attack from a global network somehow, I think one even jokes they suspect it was the CIA.
But yeah, as to how L starts to think it was supernatural they never really go into it besides “he’s the world’s best (and 2nd and 3rd best) detective”.
In the first episodes L tested if Light had to be there in person to kill with the broadcast of Lind L Taylor, but I think he never mentioned a supernatural cause. Later Light made criminals write letters with the hidden message “L do you know Shinigami love apples”, probably starting the suspicions in the supernatural direction
IIRC prisoners died worldwide of heart attacks in the span of a few hours. The cops do mention the possibility of it being a coordinated attack from a global network somehow, I think one even jokes they suspect it was the CIA.
But yeah, as to how L starts to think it was supernatural they never really go into it besides “he’s the world’s best (and 2nd and 3rd best) detective”.
In the first episodes L tested if Light had to be there in person to kill with the broadcast of Lind L Taylor, but I think he never mentioned a supernatural cause. Later Light made criminals write letters with the hidden message “L do you know Shinigami love apples”, probably starting the suspicions in the supernatural direction