When she overhears Nabuca admit to killing the assassins , Soon attempts to kill Nabuca with a rifle .
When she overhears Nabuca admit to killing the assassins , Soon fails to do so due to Boo 's self - sacrifice .
When she overhears Nabuca admit to killing the assassins , Soon attempts to kill Nabuca with a rifle but fails to do so due to Boo 's self - sacrifice .