One Piece Chapter 27, page 15: The Plot

Usopp releases the shot, yelling, "Shoot..." and hits the second guard square in the face. The guard groans, "Argh!!" and collapses to the ground. Kaya is horrified, screaming, "Usopp-san! Stop it!!" She looks out the window and gasps, "What happened? Both guards are... This isn't the Usopp-san that I used to know..." Usopp, standing over the defeated guards, pleads with her one last time: "Kaya! Please believe me! Hurry and leave this village! Before the butler comes back!"