Springfield, MO (KSPR/CNN) - Missouri authorities are offering a big reward for information leading to the arrest and conviction of those responsible for an unsolved double murder.
Rebecca and Russell Porter were abducted from their rural home in Greene County a year ago.
Their bodies were found a few days later and investigators ruled the couple's deaths a homicide, but there's still no one in custody.
Greene County Sheriff Jim Arnott is trying to change that.
"There's still a reward up to $20,000 for a person or persons with information related to the arrest and conviction in this case. We still receive good information on a weekly basis, so anyone with information, still, we would encourage you to call," said Arnott.
Arnott said investigators are looking at some people they want to question in the case, but haven't been able to get enough evidence for charges.