EVERETT, Wash. - A lab report that was unsealed after a jury convicted a Washington state man in the killings of a young Saanich couple shows investigators found more DNA evidence linking the suspect to the crime.

The Daily Herald reported Monday that the DNA of William Earl Talbott II was found on zip ties discovered at the crime scene.

Talbott was found guilty last month of the murders of 18 year-old Tanya Van Cuylenborg and 20-year-old Jay Cook.

The couple from Saanich disappeared in November 1987 while on a trip to Seattle. Their bodies were found in separate locations in northwestern Washington state.

Defence attorney Jon Scott has asked for a new trial for Talbott. A judge is set to consider the request Wednesday.