Matt Sopron was implicated in a double murder nine months after the crime by the true perpetrators who were looking to avoid a death sentence.
There was no physical evidence linking him to the crime, and the witnesses implicating him all told different stories. Defense witnesses contradicted their testimony.
After trial, two prosecution witnesses recanted and related how they were coerced into giving false evidence, transcripts are available here.
Matt was asleep at home when the crime took place, and he had no knowledge of it.