Prosecutors on Wednesday presented evidence about George Zimmerman's work in a college criminal justice course, which they say shows the neighborhood watch volunteer knew about Florida's self-defense law and had aspirations of becoming a police officer. Zimmerman had maintained in an interview with Fox News last year that he did not know about the law.

Prosecutors say he did have knowledge of it, however, because the subject was covered in the college class. They called as a witness Alexis Francisco Carter, the military attorney who taught Zimmerman's class that covered Florida's stand-your-ground law, which says a person has no duty to retreat and can invoke self-defense in killing someone if it is necessary to prevent death or great bodily harm. Carter described Zimmerman as one of his better students and said the neighborhood watch volunteer got an "A'' in his class.

Under cross-examination, Carter gave two definitions of legal concepts that seemed to bolster the defense's case. He explained that a person can make a self-defense argument if the person has a "reasonable apprehension" of death or great bodily harm. "It's imminent fear. The fact alone that there isn't an injury doesn't necessarily mean that the person didn't have a reasonable apprehension or fear," Carter said. "The fact that there are injuries might support there was reasonable apprehension and fear."

Read it at ABC News.