Did George Zimmerman racially profile Trayvon Martin the night of the fateful encounter that led to the teen's death?

In newly-released evidence, there's more proof that police don't think so -- but they do think Zimmerman thought Martin may have been affiliated with an area gang.

Zimmerman is facing second-degree murder charges for the shooting Trayvon Martin in February.

The FBI investigated whether the case was a civil rights issue. Sanford Police Detective Chris Serino told agents that he "believed that Zimmerman's actions were NOT based on Martin's skin color, rather based on his attire, the total circumstances of the encounter and the previous burglary suspects in the community."

Serino goes on by explaining that there's a local gang known as the "goons" that Zimmerman may have believed were responsible for previous criminal activity in the neighborhood.

That gang, according to Serino, would dress in black and wear hoodies, and that could be why Zimmerman viewed Trayvon Martin as suspicious.

Serino describes Zimmerman as "overzealous" and having a "little hero complex," but Serino didn't believe Zimmerman was a racist.

The evidence will give the public a better view of the scope of the investigation into what happened the night Zimmerman shot Trayvon Martin in Sanford in February.

It includes pages of evidence from FDLE and the FBI. One of the big things that comes from that is witnesses do not seem to be exactly sure of hat they were seeing the night of the shooting.

For instance, one witness -- a neighbor -- says she saw one man on top of another wearing a white t-shirt, and after the gunshot, the person in the white t-shirt was face down on the ground, and not moving.

But as we now know, George Zimmerman was wearing a red jacket, while Trayvon Martin was wearing a dark hoodie.

Meanwhile one officer said he did not notice any injury to Zimmerman's nose, while Det. Chris Serino said that Zimmerman was really beaten up and scratched.

We also know that George Zimmerman had exchanged emails with former Sanford Police Chief Bill Lee regarding the organization of the neighborhood watch in his community.

Zimmerman takes the time in an email to Lee to tell him that he has "not had a positive perspective of Sanford Police Department," but the work of community volunteer coordinator, Wendy Dorival, helped give him a new perspective and restored his faith in the department.

Also released -- radio transmissions from Sanford Police Department from the night of the shooting. Much of it is not relevant, but we do hear that police were looking for a "black male late teens wearing a dark gray hoodie, sweat pants walking around.  Last seen running towards the back of the complex.” Minutes later there were reports of screaming and a gunshot.

After officers get to the scene and check Zimmerman and Trayvon Martin's body, officers say there was no identification on Martin. They also say this crime scene was very big.   

Also included, an FDLE ballistics report that includes pictures of the clothing Trayvon Martin was wearing the night he was killed. The sweatshirt he wore was  soaked with blood, and the now infamous dark colored hoodie with a bullet hole.

The report concluding evidence is consistant with a "contact shot" -- meaning the muzzle of the gun was flush against the victim's body.