This is what a racist does?: In 2011, Zimmerman publicly defended homeless black man who had been beaten by the white son of an officer

Is this what a racist would do?  Why didn't anyone bring this up during the trial?  The fact that the police said that they believed Zimmerman is all the more amazing after Zimmerman publicly criticized them over such a sensitive matter. From the Associated Press:

George Zimmerman accused the Sanford police department of corruption more than a year before he shot Trayvon Martin, saying at a public forum the agency covered up the beating of a black homeless man by the son of a white officer. 

"I would just like to state that the law is written in black and white," Zimmerman said during a 90-second statement to city commissioners at a community forum. "It should not and cannot be enforced in the gray for those who are in the thin blue line." 

The forum took place on Jan. 8, 2011, days after a video of the beating went viral on the Internet and then-Sanford Police Chief Brian Tooley was forced to retire. Tooley's department faced criticism for dragging its feet in arresting Justin Collison, the son of a police lieutenant.  

"I'd like to know what action the commission is taking in order to repeal Mr. Tooley's pension," Zimmerman said to the commission. "I'm not asking you to repeal his pension; I believe he's already forfeited his pension by his illegal cover-up in corruption in what happened in his department." . . .