Steven Morris, 45, and Kelly Cassidy, 42, were walking past the victim’s home when her husband ran into the street to get help as she was ill. Lancashire Live says they pretended to call 999 but instead they callously stole a purse and a mobile phone from within the property.
The woman died later that day after the despicable duo had fled with the belongings.
But Burnley Crown Court heard the pair were arrested two days later and charged with burglary.
Yesterday, the yobs were jailed for a combined total of over six years after admitting the charge.
Morris was sentenced to four years and three months in custody, while Cassidy was jailed for two and a half years.
Speaking after sentencing, DS Phil McGauley, of Lancashire Police, said: “This was a shocking and despicable crime committed against elderly victims at a time when they were at their most vulnerable and in need of urgent help.
“Rather than provide that help, Morris and Cassidy took it upon themselves to commit this callous burglary for their own selfish gains. I have been investigating burglaries for many years and cannot comprehend how someone can be so cruel to commit an offence like this.
“My thoughts remain with the victim of this offence and his family who have acted with great bravery and dignity throughout this investigation.”
He added: “I am also very grateful to all those who shared their CCTV with us and those who had the fortitude to come forward with information in relation to this offence and the identities of those who committed this callous crime.
“I want to reassure the public across East Lancashire that Lancashire Police will not leave any stone unturned to find people who commit burglary. My team and I will do all that we can to ensure we find the offenders and bring them to justice.”
It comes after a pensioner was attacked in her own home in Gateshead, Tyne and Wear, recently as she tried to defend her property.