Who said "We need to find out who really did this."?

This quote is attributed to Bucky Barnes (Civil War).

We need to find out who really did this. - Bucky Barnes (Civil War)

"We need to find out who really did this."

Bucky Barnes (Civil War) Justice

"I'm with you till the end of the line."

"That's all that's left, isn't it?"

"You know me."

"I don't know if I'm worth all this."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."