He means William. He and his elder son spur their horses.
AT THE BARN - DAY
The Wallaces ride up, looking around.
Malcolm finds a pitchfork, John the woodpile axe...
INT. THE BARN
POV from within as the door opens and a widening block of
sunlight illuminates the dusty shadows. Malcolm and John
Wallace step in, and are shocked to see...
POV THE WALLACES
Hanging from the rafters of the barn are thirty Scottish
noblemen and thirty pages, their faces purple and contorted
by the strangulation hanging, their tongues protruding.
Malcolm stabs the pitchfork into the ground in useless anger;
John still grips the axe as he follows his father through
the hanging bodies of the noblemen to the back row, to see
the one man in commoner's dress, like theirs...
A SHUFFLE; John spins; William has entered the back door.
William! Get out of here!
Why would MacAndrews make so many
Before his father and brother can think of anything to say,
William, with a boy's curiosity, touches the spurred foot of
the hanged noblemen we first saw riding in. It's too solid;
he takes a real look at the face, and suddenly --