Four members of a crew filming a television reality show in downtown Oakland were robbed at gunpoint Monday night of $50,000 worth of equipment and personal items, according to a victim and authorities. The head of the crew said he was thrown up against a wall and that he and the other victims were forced to lay on the pavement, where the two robbers put guns to their heads and threatened them Chris Burns, 37, an independent director of photography for the AwesomenessTV production “This Is Summer,” a reality show that follows eight 17-year-olds growing up in the Bay Area,...