A £5,000 reward is on offer for information about a burglary in Dudley, where an 83-year-old woman died shortly after.
Four intruders pretending to be from a water company tricked their way into Betsy Malpass's home on Corporation Road, at around 3pm on Friday 8 February 2019.
Betsy was forced to sit on a chair while her mobile phone was put under a running tap and her entire life savings were stolen.
The following weekend Betsy was taken to hospital, but she died three days later.
It's believed the offenders arrived and left in a black Audi S-Line car.
The suspects are all described as white men. One is thought to be in his mid-twenties and around 5ft 10ins tall, with a chubby face. He was wearing a black hat and scarf.
Footage captured by CCTV shows cars that were in the area at the time - Crimestoppers are asking drivers to come forward and share any information:
A reward of up to £5,000 is available to anyone providing information directly to Crimestoppers charity which leads to the arrest and conviction of those responsible for this crime.