Jennifer Thompson was a college student when she was raped. During the attack Jennifer tried to memorize what the man looked like so she could identify him later. Jennifer wrongly identified Ronald Cotton, and he served 11 years before he was exonerated.

Also, Lamonte Armstrong was sentenced to life in prison for the murder of his elderly next door neighbor. He was exonerated last summer and is still trying to negotiate life in a world he was removed from for years.

Jason Puracal was working in Nicaragua when he was wrongfully convicted of drug trafficking, money laundering, and organized crime. He was sentenced to 22 years in one of the worst prisons in the country. His sister Janis led the charge for his release. Also, Greg Hampikian, a forensic expert who has devoted himself to using DNA technology to free the innocent.

This is one episode in our four-part series "After Innocence: Exoneration in America." Guests include Scott Hornoff, a Rhode Island police officer convicted of murder in 1996. Since his exoneration he has been unable to find work in this country so he has become a private security consultant in Afghanistan. Also: Julie Baumer, convicted of child abuse for what later was determined to be “shaken baby syndrome”. She was exonerated. And the man at the Innocence Project who receives thousands of letters from prisoners hoping to be freed.