Lead detective testifies in double murder trial

CASS COUNTY, Mich. -- Several expert witnesses testified Wednesday in the double murder trial of Keith Lintz. He is accused of killing John and Carolyn Tarwacki in their Niles home in February 2010.

In addition to lab technicians, the lead investigator in charge of the case, Detective Sergeant Fabian Suarez of the Michigan State Police took the stand.

The defense asked Suarez about the murder weapon and who found it.

While searching the home right after the murders, the police failed to find the knife used in the murders.

A few months after the murders, while cleaning out the freezer, Carolyn Tarwacki's mother found the knife in the freezer.

"It was definitely embarrassing to say the least to have a victim find that," said Suarez.