watch out

On newark path train a Tall thin black guy with a very effeminate voice. Short ponytail black shades and black hat he was very aggressive. I am not from here but he got aggressive with me when nobody would give him a dollar so I walked off then he started talking to himself then singing to himself.Does anyone know this person? His aggresion levels gave me the impression he had a weapon on him please be careful if you run into this person.