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George Zimmerman's injuries

May 17, 2012 / 7:16 PM EDT / CBS News

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows the Kel-Tec PF-9 9mm handgun used by George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012

AP Photo/State Attorney's Office

This Feb. 27, 2012 photo released by the State Attorney's Office shows the Kel-Tec PF-9 9mm handgun used by George Zimmerman, the neighborhood watch volunteer who shot Trayvon Martin. The photo and reports were among evidence released by prosecutors that also includes calls to police, video and numerous other documents. The package was received by defense lawyers earlier this week and released to the media on Thursday, May 17, 2012.