Story highlights Hundreds of black men and women are convicted, exonerated for crimes they didn't commit

Representing 13% of the US population, black people make up 47% of the 1,900 exonerations that were studied

(CNN) All Marvin Anderson ever wanted to be was a firefighter. Instead, at 18 years old, he was wrongfully convicted of rape, sodomy, abduction and robbery.

When a Virginia judge sentenced him to 210 years in prison, "My whole body went numb," Anderson told CNN. "I knew I was going to prison for something I didn't do."

It took 15 years behind bars and five years on parole before Anderson was exonerated for his crimes -- the result of DNA testing.

"I trusted in the justice system and it failed me," he said.

Anderson is just one of hundreds of black men who have been convicted of and exonerated for crimes they didn't commit. A new report from the National Registry of Exonerations, a joint project between the University of California, Irvine; University of Michigan Law School and Michigan State University College of Law, shows that black people are more likely to be wrongfully convicted than white people and are also likely to spend longer in prison before being exonerated for their crimes.

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