I've seen him also but I don't know who he is.
White male about 6'2, 275 pounds, goatee about 50 years of age. Last seen wearing a black top hat and black magicians cape with a red satin lining. Walks with a limp (left leg).
His asssitant/side kick is a troll rescued from under the 14th street bridge prior to the demolision of the old span. Described as about 4'0 with flaming red hair that sticks up about 2 feet off the top of his head. Easily recognizable by a crooked nose and unsightly worts on his face. Try not to stare as he has a set of nasty teeth and spits when he talks so please keep your distance. Troll spit, I hear, is toxic and has been rumored to turn people into trolls.