Why was Shawn the culprit?

"Also, Grandpa, I've told you repeatedly that I can't live without Gale, but you keep trying to break the two of us up! Have you thought about my feelings?!"

It took a moment for Lucas to snap back to reality.

"Even… if the child was not Gale's fault, her father still killed yours. This is a blood grudge that can never go away! How could the two of you be together?

"This is between the two of us. You don't have to worry about that. As for my hand, I crippled myself