George Zimmerman Pleads 'Not Guilty'

George Zimmerman has officially pled "not guilty" to a charge of 2nd Degree murder after shooting and killing 17-year-old Trayvon Martin in a Florida suburb back in February.

George's attorney entered the plea during his arraignment today in Seminole County. The 28-year-old was not present in court.

A pretrial date has been set for August 8th.

Zimmerman -- a community watchman -- shot and killed Trayvon on Feb. 26th in Sanford, Florida, but no arrests were made at the time. Zimmerman has consistently maintained he shot Trayvon in self-defense.

A firestorm of media attention has surrounded the case -- with many celebs like Spike Lee, Roseanne Barr and LeBron James claiming the shooting was racially motivated.