Police say Carla Helmer hadn’t gone to work for three days before she was found fatally stabbed in her home on Oct. 28, 1992.
According to police, evidence suggested Helmer knew her attacker and indicated she tried to fight off the attacker.
Police say people of interest were identified early on in the original investigation but that the case went cold after a few years and hasn’t been solved after several additional reviews over the years.
Police say investigators are reviewing what evidentiary items can be re-examined.