b-29, comments which we already knew in our hearts to be true." and she issued a larger plea for others to take on her cause. >> my message to you is, please use my story, please use my tragedy, please use my broken heart to say to yourself, we cannot let this happen toll anybody else's child. >> reporter: trayvon martin's family has started a foundation in his memory. they say one of their goals is to fight against stand your ground laws that have enacted in more than half the states. erin? >> thank you. well, an evacuation has been ourered for an area north of los angeles after a squirrel tested positive for the plague. this is a real story. no humans have been infected yet. but authorities are advising people to steer clear for a week while they test the area.