'He would have died if he hadn't killed Trayvon': George Zimmerman's best friend defends him on Dr Phil after penning a book Read more: http://www.dailymail.co.uk/news/article-2202118/Trayvon-Martin-case-George-Zimmermans-best-friend-defends-penning-book.

Mark Osterman and his wife Sondra appeared on the nationally syndicated show to defend George Zimmerman and explain the situation surrounding Trayvon Martin's death
Said that Trayvon Martin would have killed George Zimmerman if the neighbourhood watch volunteer had not shot the Florida teenager in defence
Said that Zimmerman suffered a serious concussion during his encounter with Trayvon on February 26th and that his injuries would have been greater had he not shot the teen
By JAMES NYE READ MORE