Carol Peletier from THE WALKING DEAD season 4 episodes 2, 3, and 14 and season 5 episode 6
THE FAILED CONFESSION
I plunged the knife into the base of David's head,
I stabbed the knife into the base of Karin's skull,
I didn't want to do it,
I had to protect everyone,
Karin and David were diseased.
I dragged David's body into an inner court yard,
I pulled Karin's lifeless shell there, too,
Pouring gasoline on their corpses,
Setting them aflame,
Knowing it was for the best,
But hating myself for it.
It was a fruitless effort,
Patrick was already sick,
Already dying,
And his walking carcass,
Eating others,
Spreading the plague.
And Lizzy,
She had a mental problem,
Thinking the cadavers were her friends,
But she murdered Mika,
Her own sister,
She had to be put down,
I made her look at the flowers,
She may have killed Judith, too,
I had no choice, Daryl.
But you don't want to hear.
I wish I hadn't killed Karin,
I wish David was alive,
Lizzy, too,
But this is my cross to bear,
As you have pointed out with your actions,
Not yours.