  UNIDENTIFIED FEMALE: I am Trayvon Martin! I am Trayvon Martin!  UNIDENTIFIED MALE: I am Trayvon Martin! I am Trayvon Martin!  UNIDENTIFIED FEMALE: I am Trayvon Martin! I am Trayvon Martin!  (END VIDEO CLIP)  (COMMERCIAL BREAK)  (BEGIN VIDEO CLIP)  ZIMMERMAN: I was 