Who said "I don't fear death. I've already died once."?

This quote is attributed to Frank Castle.

I don't fear death. I've already died once. - Frank Castle

"I don't fear death. I've already died once."

Frank Castle Death

"Punishment is a language they understand."

"I'm not a hero. I'm a tool, sharpened and aimed."

"The only way to stop evil is to be better at it than they are."

"Mercy is for the living. The dead don't care."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."