Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @FoxNews @SheriffClarke @FoxNewsInsider This man is an affront to our justice system.
This tweet contains emotions: 
anger, disgust, joy, sadness