This is not a fact it's more like a tale or a scary myth/legend cause I'm pretty sure no one would believe it.
-----------
If you take a picture with 3 people, the one in the middle would die.

Example:
You: hi (person you hate) wanna take a photo with me and (friends name)
Pyh:Sure!
You:*places pyh in the middle* thanks
Pyh: No problem

5 days later.....
Pyh died