CNN CNN Newsroom July 10, 2013 18:12:00
Zimmerman's defense today. today, zimmerman's attorneys put on the stand dennis root, a private investigator, a former police officer, taser instructor, hand to hand combat teacher and overall expert on the use of force. root explained how witness testimony often conflicts in high stress situations. zimmerman did not have the abilities of a fighter. and that trayvon martin appeared to be physically fit. let's listen in right now as he continues his testimony. >> did you know how far away approximately the gun was from mr. martin when it was fired? >> yes. >> and what do you know that to be, ap...