The fatal shooting of Trayvon Martin, 17, in Florida has spurred a national response that is taking numerous forms, including rallies in multiple cities and active discussion on social media. What do you know about the case? What is your personal response? What questions and issues does it raise for you? As Jennifer Preston and Colin Moynihan report on The Lede blog, Trayvon Martin's death has sparked "outcry and action": Outrage over the fatal shooting of Trayvon Martin, 17, in central Florida continued to grow across the country, with at least two thousand people rallying Wednesday night in New York City and Miami. Civil rights leaders are planning more demonstrations in other cities in the coming days, including a rally Thursday night in Sanford, Fla. Tracy Martin and Sybrina Fulton, parents of the teenage boy who was shot by George Zimmerman, a self-appointed volunteer neighborhood watchman, addressed the huge crowd in Union Square for what was billed as "A Million Hoodie March." "We're not going to stop until we get justice for Travyon," Mr. Martin told the crowd. Students: Tell us your feelings and thoughts about the Trayvon Martin case. Are you following the story and its fallout? Are you talking about it at school, at home or on Facebook or other social media? What questions do you have about the story? What are the main issues it raises for you - about race, justice, the law and law enforcement, gun violence and more? NOTE: We ask that adults respect the intent of the Student Opinion question and refrain from posting here. There are many other places on NYTimes.com for adults to post (like here in this case), while this is the one place that explicitly invites the voices of young people. Please note our commenting guidelines.