The reason the Wilmington 10 were released from prison after 8 years was It was revealed that the evidence against them was fabricated.
It was discovered in 1980 that the Assistant District Attorney had fabricated the testimonies against the Ten and so the U.S. Fourth Circuit Court of Appeals quashed the cash.
In 2012, the Wilmington Ten were officially pardoned by the North Carolina Governor.
Find out more on the Wilmington Ten at https://brainly.com/question/16211729.