Determine the valence intensity of the following tweet, considering the mental state of the author. Assign a real number between 0 and 1, where 0 denotes extremely negative and 1 denotes extremely positive.
Tweet: A 28 yr old man threw a saucepan of boiling water at a garda, &amp; then hit the garda with the shaft of a brush...Letterkenny District Court.
0.266