![There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun](https://www.thesun.co.uk/wp-content/uploads/2018/05/nintchdbpict000403291763-e1525360222390.jpg?strip=all&w=947)
There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun
![There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun](https://www.thesun.co.uk/wp-content/uploads/2018/05/nintchdbpict000403261476-e1525359340346.jpg)
There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun
![There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun](https://www.thesun.co.uk/wp-content/uploads/2018/05/nintchdbpict000403261477.jpg)
There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun
![There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun There's one thing you've probably never noticed about serial killers… and it's freaking people out | The Sun](https://www.thesun.co.uk/wp-content/uploads/2018/05/nintchdbpict0003185437471.jpg)