Who trashes coles room and bloodies his knuckles in in touching spirit bear?

In "Touching Spirit Bear" by Ben Mikaelsen, the character who trashes Cole Matthews' room and bloodies his knuckles is his father, who is portrayed as abusive and neglectful. This incident reflects the tumultuous relationship between Cole and his father, showcasing the anger and violence that permeate Cole's life. The destruction of the room symbolizes Cole's inner turmoil and the chaotic environment he navigates.