THE GUN HARDING HAD is shown laying on the sidewalk in this video...
http://abclocal.go.com/kgo/video?id=8260286
Harding, a Seattle resident, was a person of interest in a shooting in that city last week that killed a 19-year-old pregnant woman and injured three other people, police said.
He was on parole in Washington State after serving part of a 22-month sentence for attempting to promote the prostitution of a 14-year-old girl, and was in violation of his parole by being in San Francisco, according to police.
The march, which began through the Mission and Castro districts around 6 p.m., came the same day investigators said tests found gun residue on 19-year-old Kenneth Harding's hand, indicating he fired the first shot at officers Saturday.
Police Chief Greg Suhr said the Seattle man fired the first shot at the officers, who shot back about nine times. Harding was pronounced dead after the chase in the Bayview neighborhood that began when officers approached him for not paying his fare on a light-rail train.
Harding was on parole for promoting prostitution in Washington state and was a person of interest in a fatal shooting in Seattle last week, authorities said.