Oscar Smith’s attorney says newly available DNA evidence shows DNA of an unknown person on murder weapon

A Tennessee inmate scheduled to be executed this month petitioned the courts on Monday to reopen his case after DNA from an unknown person was detected on one of the murder weapons.

Oscar Smith, 71, is scheduled to die by lethal injection on April 21.

He was convicted of fatally stabbing and shooting his estranged wife, Judith Smith, and her two teenage sons, Jason and Chad Burnett, 13 and 16, at their Nashville home on Oct. 1, 1989.

Tennessee inmate Oscar Smith is scheduled to be executed April 2022 and is asking the courts to reopen his case after DNA from an unknown person was detected on one of the murder weapons. (Tennessee Department of Correction/AAP)

He was sentenced to death by a Davidson County jury in July 1990 for the murders.

Mr Smith has maintained that he is innocent.

In a Monday filing, Mr Smith’s attorney states that newly available touch DNA technology allowed the previously impossible analysis of evidence left on an awl — a leather-working tool similar to an ice pick — that was found at the crime scene.

The victims were also shot and stabbed with a knife, although those weapons were never recovered.

In January, the courts released the awl to Smith’s DNA experts upon agreement between Smith and the state.

The analysis found DNA from an unknown person.

Tennessee law allows defendants to reopen their cases under certain circumstances, including where new scientific evidence establishes that they are actually innocent. The petition to reopen a case must be for “the purpose of demonstrating innocence and not to unreasonably delay the execution of sentence or administration of justice.”

Mr Smith argues that although his execution date is near, he could not have presented the DNA evidence any sooner because the technology allowing it to be analysed is brand new.

Mr Smith previously sought to prove that fingerprint evidence used against him was unreliable. Crime scene investigators testified they found a bloody palm print on the sheet next to Judy Smith’s body that was missing two fingers — the same two fingers that Oscar Smith is missing on his left hand. A fingerprint expert hired by Mr Smith later said that the investigator made numerous errors and could not have definitively identified the print.

In one example, the investigator’s own fingerprint was found on the awl, demonstrating “incompetence and lack of professionalism,” according to Mr Smith’s Monday filing.

A panel of the Tennessee Criminal Court of Appeal last month upheld a lower court’s ruling rejecting Smith’s fingerprint analysis claims.

“While procedural technicalities have thus far prevented the courts from reviewing new evidence that shows the fingerprint examiner who identified Mr Smith overstated the case, an unknown person’s DNA on the murder weapon must be fully considered by the courts,” Mr Smith’s attorney Amy Harwell said in a statement on Monday.

A spokesperson for the Tennessee attorney general’s office did not immediately respond to a request for comment.


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