I thought Q1 was asking for quite honestly. My friends were a bit upset after the exam, and one made the fatal mistake of using automatism in replace of diminished responsibility. She is completely freaking out! For the gang, I put that it did break the chain of causation. Although the factual causation between Adam and Calvin is present, the gang kicking him in the head was the substantial cause for his loss of movement, and is therefore an intervening act.