No police officers in the Rodney King case 'snapped'. There's pretty convincing evidence that the entire police department had an endemic racism problem - just like the London Met police and Mark Duggan shootings, or Stephen Lawrence fiasco. They either turn a blind eye where they should have a duty, or they use their legal powers wrongly. American police are far more brutal and have far more permission to use 'legal force' than British police. No one had a psychological 'snap' in this case, so please stop re-presenting the history as something it is not. They were racists.