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Trayvon Martin's mother, Sybrina Fulton, has told a town hall meeting that accusations he attacked George Zimmerman, the man who shot and killed the teenager, were a smear against her son.
"They've killed my son and now they're trying to kill his reputation," she said.
Civil rights leader Rev. Al Sharpton, said Martin was being demonized in order to divert attention from Zimmerman's actions.
He told the town hall meeting: "I said to the parents, as much as they were hurting, they will try to make your son a junkie, a thief, an assaulter and everything else before this is all over because they've done it in every case we've fought."
The civil rights activist Jesse Jackson spoke to worshippers at a church service in memory of the murdered American teenager Trayvon Martin. Churchgoers across the country wore hooded sweatshirts as a mark of respect for Trayvon.
George Zimmerman, the man accused of murdering Trayvon Martin, cried for days in remorse after the killing, a family friend of Zimmerman has said.
28-year-old Zimmerman shot 17-year-old Trayvon Martin during an altercation last month in Sanford, Florida.
After barely going noticed for weeks, the case has since divided the US and renewed a national discussion about race.
Joe Oliver, former Orlando television news reporter who has known Zimmerman for several years, said:
"He couldn't stop crying. He's a caring human being. I mean, he took a man's life and he has no idea what to do about it. He's extremely remorseful about it."
Freedom Plaza in Washington DC turned into a sea of people carrying Skittles candy bags, iced tea cans, and wearing hoodies to protest against the killing of 17-year old Trayvon Martin.
Trayvon Martin, dressed in a "hoodie" sweatshirt, was shot dead in Sanford, Florida by a 28-year-old white Hispanic neighborhood watch volunteer who said he was acting in self-defense. The young man was reportedly carrying a bag of Skittles and an Arizona iced tea when he was shot.
The case has galvanized the country and prompted rallies protesting the failure of police to arrest the shooter, George Zimmerman. Florida's "Stand Your Ground" law allows people to use deadly force in self-defense.
Craig Sonner, the lawyer representing George Zimmerman who is accused of killing Trayvon Martin, claims his client was acting in self defence.
The lawyer referred to a police report that Zimmerman suffered a bloody nose and a cut on the back of his head.
Sanford police said they found no evidence to contradict Zimmerman's story of self defense, supported in part by the injuries.
Sonner said Martin punched Zimmerman in the nose and Zimmerman hit the back of his head on the ground upon falling backward.
The lawyer representing the man who shot dead a black Florida teenager said the public image of his client is almost completely wrong and that he acted out of self-defense, not racial bigotry.
Craig Sonner, a previously little known defense lawyer from Altamonte Springs, Florida, is representing George Zimmerman, who currently remains free and uncharged over the incident in the town of Sanford, just north of Orlando.
The case has divided America and prompted rallies protesting against the failure of police to arrest Zimmerman.
A man in Florida has been arrested and charged with for sending threatening emails to the police chief who had been overseeing the investigation into the shooting death of Trayvon Martin.
Sanford Police Chief Bill Lee stepped down amid national outrage over the investigation.
The neighborhood watch captain, George Zimmerman, has not been charged in Trayvon Martin's death.
Philadelphia is the latest city in America marching for justice for the family of Trayvon Martin.
Anger has grown over the past few days over comments made by Fox news presenter Geraldo Rivera. He suggested that Trayvon's clothing was to blame for his death. He said:
"I am urging the parents of black and Latino youngsters particularly not to let their children go out wearing hoodies. I think the hoodie is as much responsible for Trayvon Martin's death as much as George Zimmerman was."
His comments have sparked furious debate online, and many are taking their anger on to the streets.
Latest ITV News reports
The case of the shooting of unarmed black teenager Trayvon Martin may have shocked America, but it is not an isolated incident.
President Obama has said the killing of an unarmed black teenager by a neighbourhood watch officer is a 'tragedy.'