[David]

I'm not a cop and I have no idea what 990 means.

I saw a cop and a large African American guy about to go at it near my old house in Austin. I called 911 and told there was a cop about to get the ***** be out of him (my exact words). They said they already new. When I came out of the store where I made call. There was a black car with dark tinted windows with a red light on the dash hauling a$$ toward the scene with more marked cars in tow. Very Hollywood looking and cool. The cop was OK, a large good samaritan came up behind the other guy and took him down. In case your wondering why he didn't pull his gun, try pulling a gun out with someone right there.