After killing "reclusive" William and Patricia Wycherley at Nottingham Crown Court, Susan and Christopher Edwards swindled £245,000 over the next 15 years by pretending they were alive.
They continued to collect their benefits and pension payments, and sold their home with the bodies buried under the back garden, in August 2005.
The couple,who had been in "severe financial difficulties" for much of their relationship, were more than £160,000 in debt when they were arrested last October.
Despite their debts, they spent thousands on film memorabilia including signed photos and autographs of Gary Cooper and Frank Sinatra.
More top news
US Secretary of State Rex Tillerson said the threat from Kim Jong-un's regime was the most pressing security issue in the world.
The safety of the plane was put at risk by distraction caused by monitoring the drones, a report into the incident has found.
People reported that their cash 'disappeared into thin air' as one described it as an 'absolute disaster'.