Note: This story originally made headlines in May 2015.

In an effort to prove his innocence, Tennessee death row inmate Marlon Kiser unintentionally provided more evidence linking him to the crime he was convicted of.

Kiser was sentenced to death for the 2003 murder of Hamilton County Deputy Donald Bond, according to Times Free Press. Despite the conviction, Kiser has consistently denied the charges, claiming his former roommate, James Michael Chattin, framed him.

On his website, FreeMarlonKiser.com, Kiser accused Chattin of killing Deputy Bond over an alleged affair between Bond and Chattin’s wife, Tina. Kiser claimed Chattin had threatened to kill the deputy and then blamed Kiser to deflect suspicion.

Kiser also said he asked Chattin to leave after discovering his drug habits, which he believes led Chattin to frame him. He added that Chattin had previously asked him to kill the deputy, a claim that Kiser says shows Chattin’s motive.

Kiser started a petition to get off death row, gathering over 470 signatures with a goal of 1,000. Supporters argue that police corruption and Kiser’s knowledge of Chattin’s criminal activities made him a target.

Kiser’s attorneys sought post-conviction relief, requesting forensic tests on evidence like a flashlight and car linked to the murder. The tests found Kiser’s palm and fingerprints on the items, strengthening the case against him.

Earlier evidence also connected fibers from Bond’s clothing to Kiser.

While Kiser continues to maintain his innocence, the physical evidence appears to contradict his claims.