George Zimmerman Trial Live Stream: Expert Says Defendant's Injuries Were 'Insignificant' (WATCH)

The George Zimmerman trial opened early on Wednesday while the defense and prosecution argued over whether or not Zimmerman's college records should be admissible as evidence, according to the Orlando Sentinel.

The prosecution is attempting to paint Zimmerman as an overzealous wannabe police officer who took things too far the night he shot Trayvon Martin. Showing that Zimmerman took a criminal investigation class is the prosecution's attempt to demonstrate that point. They are also hoping to demonstrate that given the classes Zimmerman took that it was impossible that he wasn't aware of the Florida "stand your ground" law, according to the Orlando Sentinel.

Defense attorney Mark O'Mara has argued that Zimmerman's school records are irrelevant to the case. The defense has also said that it would represent a double standard if the state were able to introduce Zimmerman's school records since in pre-trial motions the defense was denied the opportunity to use Martin's records as evidence, the Orlando Sentinel reports.

The testimony of lead investigator Chris Serino wrapped up on Tuesday. The investigator's testimony did a bit of damage to both the prosecution's and the defense's case. Serino agreed that Zimmerman's comments made to the police dispatcher about Martin, talking about "a**holes" and "f**king punks" in the neighborhood, could be interpreted as ill-will, spite or hatred, the three elements necessary to consider the shooting murder, according to USA Today.

Serino managed to hurt the prosecution's case by saying that for the most part Zimmerman's version of the events that night seems plausible. Although there were little inconsistencies that Serino said raised some warning flags the key parts of the story all check out, according to USA Today.

The state also called a medical examiner from Jacksonville, Fla., Valerie Rao. Rao did not actually examine Zimmerman or Martin but was shown pictures of the injuries Zimmerman sustained; injuries that she considered to be "insignificant," according to CBS News.

"If someone's head is repeatedly slammed against concrete with great force I would expect lacerations, a lot of injuries that would bleed profusely that would necessitate suturing, so I don't see that in this picture," Rao said.

Testimony from state witnesses will continue for an eighth day Wednesday, to watch all of the proceedings a live stream can be seen here.