Mugging at Simpson park

From the neighborhood listserv: My friend was going to Simpson Park dog park on Wednesday around 2-3 PM. He talked briefly to 2 black men who appeared to be playing basketball. As he continued walking, they came up behind him, said they had a gun and took his wallet. The police were called and their reaction was: what were you doing there at that time of day. This was mid-afternoon, not the middle of the night. If you hear or know anything, let the police know. In the meantime, please be careful.