Peaceful civil disobedience should be enough to get the job done, you hope. Once you arrive in Seoul with the other protesters, you drive your excavator through the streets, heading north, as you're joined by more and more marchers. On the way, you see a street sign pointing to the prosecutors' office. That's where they're keeping Choi Soon-sil! Or you could follow along with the crowd.

I came here to kill Choi Soon-sil.

I'll go with the flow.