nbc's betty yu has the story. >> reporter: sporting his favorite color and chanting his name, trayvontin's parents led hundreds of supporters in a march for peace in honor of their late son. >> that's a beautiful feeling just to know that all of these people are out here in remembrance of trayvon. >> the purpose of our walk is to bring awareness and let people know you have a right to walk in peace. you have a right to not be followed. >> reporter: a year ago this month, the unarmed teen was shot and killed by george zimmerman who will stand trial for second-degree murder in june. he claims he shot martin in self-defense. >> the controversial matter caught the attention of actor jamie foxx who wore a trayvon martin t-shirt to the march. >> when i first saw this story, i couldn't get over it. >> reporter: foxx, who has an 18-year-old daughter, said he was especially touched by the tragedy. >> i'm absolutely committed to all of you out there who have young kids, i hope you never have to go through anything like this. >> reporter: the star said he hopes to use his voice to keep trayvon's