After fellow inmate Joseph Giarratano took on his case, citing Washington's mental disability, analysis of DNA evidence in 1994 showed that Washington could not have made the semen stain and raised doubt that he was responsible for the crimes for which he was sentenced.
Washington could not have made the semen stain. He was responsible for the crimes for which he was sentenced. Washington could not have raised doubt this. Analysis of DNA evidence in 1994 showed this. Fellow inmate Joseph Giarratano took on his case. Fellow inmate Joseph Giarratano was citing Washington's mental disability.