The fact that the bullet was found in the body and the only trace of its
firing was the hole in the curtain _below_ the window-sill proved
conclusively the shot could not have been fired from within the room.
Rocca entered at the moment his sister shot Chase from outside. Grabbing
the gun from her hand, he chivalrously protected her.
But, friend, the thing is clear—speaks for itself.
Aristophanes.