About 100 teenagers — armed with ear-splitting screams and hand-lettered signs — rallied Saturday in Westwood in support of marriage for same-sex couples. "It's important for everyone to be able to live the way they want to," said Kate Heller, 16, a student at Winward School in West Los Angeles. Two teens from Winward's new Gay-Straight Alliance, Sarah Freed, 17, and Joe Goldman, 14, organized the Federal Building rally, which drew students, gay and straight, from high schools across Orange, Ventura and Los Angeles counties, along with parents, teachers and a fluffy white poodle. John Duran, mayor of West Hollywood,...