( CNN ) -- A surveillance video captured a masked gunman on a rampage in broad daylight on an Oakland , California , street that includes the point-blank execution of a teenage boy cowering on a sidewalk , CNN affiliate KTVU said . Police are now searching for the gunman who opened fire Sunday on pedestrians , sending them running for their lives into a busy street . One man is struck by a trailer , and his shoe flies into the air , the affiliate said . The surveillance video shows the teenager putting his hands in the air , but the gunman fires several more shots into the boy point-blank , KTVU said . CNN has not seen the video in its entirety . In addition to the teen , who was killed , two others were injured , according to Officer Kevin McDonald with the Oakland Police Department . He identified the deceased as 17-year-old David Manson Jr. , 17 . The conditions of the other two victims were not immediately known . `` What do we tell our kids now ? You ca n't grow up to be 17 ? '' Contee Vility , a neighbor , told KTVU . `` You ca n't help where you live . ''
NEW : The teenager is identified as 17-year-old David Manson , of the 1000 block of North Kedzie Avenue in Chicago. : Two other people were injured in the attack . NEW : Police are searching for the suspect , who opened fire in broad daylight .