Former New York City Mayor Rudy Giuliani said the grand jury's decision not to indict white police officer Darren Wilson in the fatal shooting of an unarmed black teenager, Michael Brown, was "correct" and the only one they could have reached in the racially charged case.

"I believe it was a correct verdict," Giuliani said on CNN Tuesday. "In fact, I think it was the only verdict the grand jury could reach."

The longtime mayor and former U.S. attorney argued that there was no evidence of probable cause, and no chance that a prosecutor could secure a conviction in the case.

"As a prosecutor, you couldn't possibly have won that case," Giuliani said. "They would've been destroyed at trial by a halfway competent defense lawyer, because of all the inconsistencies."

He added: "If you can't prove probable cause, how are you going to prove it beyond a reasonable doubt when the witnesses are contradicting themselves?"

On Sunday's "Meet the Press," Giuliani sparked controversy over his contention that the fatal shooting of Brown is not emblematic of a larger problem.

"I find it very disappointing that you're not discussing the fact that 93 percent of blacks in America are killed by other blacks," Giuliani said. "We're talking about the exception here."

"Black people who kill black people go to jail," Georgetown University Professor Michael Eric Dyson, who was also a guest on "Meet the Press," replied. "White people who are policemen who kill black people do not go to jail."

On Tuesday, Giuliani did not back away from his comments.

"I said the same thing the president of the United States said, and I was accused of being a racist," the former mayor said on CNN. "The president of the United States said because the minorities typically are subject to more crime, they need law enforcement more than anybody else. When he said it, he wasn't accused of being a racist."

Giuliani, who lost his bid for the Republican presidential nomination in 2008, criticized President Barack Obama's comments in the wake of the grand jury's decision.

"When the president was talking last night about training the police, of course, the police should be trained," Giuliani said. "He also should have spent 15 minutes on training the [black] community to stop killing each other. In numbers that are incredible — incredible — 93 percent of blacks are shot by other blacks. They are killing each other. And the racial arsonists, who enjoyed last night, this was their day of glory."

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