DETROIT (RNN) - A video posted on abcnews.go.com shows an altered highway sign with the name "Trayvon" and a racial slur.
Drivers going west on I-84 near Michigan Avenue in Detroit saw the hacked electronic construction sign early Monday morning.
Before it was fixed, it read, "Trayvon / A (slur)."
Police say a vandal unlocked the sign and typed the message. They are asking for the public's help in finding the person responsible.
The shooting death of Trayvon Martin, an unarmed black teenager who was shot as he was returning on foot from a store to his father's fiancee's house in Sanford, FL, has inflamed passions from coast to coast.
George Zimmerman, a 28-year-old volunteer neighborhood watch captain, has admitted to the shooting, but told police that night that he shot Martin in self-defense. A controversial Florida law allows a person to use deadly force if they are confronted, with no duty to attempt to retreat first.
Zimmerman has launched a website in an attempt to raise money for his defense.
"I will also personally, maintain accountability of all funds received," Zimmerman says on the site.
The case has brought to light lingering racial tensions in the Florida town, where police had been accused before of racial insensitivity. Zimmerman was questioned the night of the shooting, but was not arrested or charged. The lead investigator in the case has said he wanted to bring charges against Zimmerman, but was advised against it by the prosecutor.
Special prosecutor Angela Corey has been appointed to the case. Corey announced Monday that she would skip the grand jury and decide herself whether Zimmerman will face charges.
On the night of the shooting, Zimmerman had called emergency operators to report Martin looking "suspicious" as he was walking through the gated community. Zimmerman identified Martin as black after the operator asked him the person's race.
An NBC news producer was fired for editing an audio tape of the call in a way that made it sound as if Zimmerman had volunteered Martin's race on his own.
Several rallies and marches have been held to protest the fact that Zimmerman has not been arrested or charged in the killing. Civil rights leaders, celebrities and even President Barack Obama have weighed in on the case.
"If I had a son, he would look like Trayvon," he told reporters.
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