Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
Tweet: #DamilolaOurLovedBoy So upsetting 😢😢. Why do people want to hurt others! Such a cruel world we live in #heartbreaking
This tweet contains emotions: 
anger, disgust, pessimism, sadness