A call to Seaside Heights police Saturday evening reported what could be a terrible scenario for the town: gunfire on the boardwalk, on a holiday weekend, at 8:15 p.m. People and police responded as expected. Crowds ran from the boards, racing down the exit ramps onto the streets in a panic, as officers raced to the oceanfront on foot and in cars, guns drawn and trying to find gunmen or victims. Many people pulled out their cell phones and captured the frantic early moments, like this one and this one and this one. One person filming, apparently amused at the chaos, ran alongside an officer wi…