The killing of Florida teen Trayvon Martin is prompting Hoosiers to take action, headed by an Avon mother who is organizing a march for Monday night to show solidarity against the shooting.Police said a neighborhood watch volunteer in Sanford, Fla., fatally shot Martin, 17, in February. The volunteer claimed he was acting in self-defense. Martin was unarmed, carrying a bag of Skittles candy and an iced tea.A national outcry of support for Martin ensued, a movement that has spread to central Indiana, RTV6's Kara Kenney reported.An Indianapolis march is set to begin Monday at 4:30 p.m. at Crispus Attucks High School and will move through several city streets, including Meridian Street.Emily Caldwell said she hopes the march will raise awareness as she spent the weekend drumming up support for the event. As of Saturday afternoon, nearly 900 people had pledged to attend.Caldwell and others passed out fliers, hoping to spur a groundswell of support for the notion that discrimination isn't acceptable."This is a nationwide problem. Our black males are profiled everywhere, and it happens every day," she said.Martin was wearing a hooded sweatshirt at the time of the shooting. Many of the march participants are expected to wear hoodies, too, including Caldwell's biracial son, Idris Foster."Anybody could judge me right now, but no one should be judged just because they're wearing a hoodie or their skin color is darker or they look different," Foster said. "I've had confrontations where people have come up to me and have said things based on my race. They prejudge me."Organizers said they hope demonstrations nationwide will bring justice in the investigation."We're asking people to get involved in their community and step up and take action and speak out," Caldwell said. "We want to show every voice does count."The march is expected to finish by 7:30 p.m.