The death pattern in Game of Thrones

There’s a pattern. A pattern behind death of most of the major characters.
  • Remember this scene from Season 1, Episode 1. Ned beheaded the deserter.
He later gets beheaded by his own sword.
  • Tywin Lannister ordered the deaths of Northern Lords via crossbows.
He later gets executed by Tyrion, using crossbows.
  • In the Red Wedding, Roose Bolton drives a dagger through Robb Starks’s heart.
Surprise!!!
  • Catelyn Stark’s throat was slit on Walder Frey’s order.
Later,
  • Ramsay liked to feed people to his dogs.
HoHoHooo!!
  • Jon Stabs Qhorin Halfhand.
He is stabbed by Night’s Watch Brothers.
  • Olenna used poision to kill Joffrey in Purple Wedding.
She is poisoned by Jamie, later.
  • Little Finger puts a dagger on Ned’s throat.
Arya Stark kills Littlefinger, using the same dagger.
Karma struck them hard.
source:Quora