Sabana Grande Mayor Marcos Valentín Flores By THE STAR STAFF Sabana Grande Mayor Marcos Valentín Flores on Tuesday urged all citizens to celebrate New Year’s Eve responsibly, avoiding the use of firearms and fireworks, thinking about the safety of all families in Sabana Grande. “We want to carry a clear and forceful message: there is no justification for shooting into the air,” the mayor said. “Every time someone fires a gun during the holidays, they put the lives of innocent people at risk....