Story - could be fake news?
I read about someone who pretended to be attacked with a gun during the scam and made the gun shot noises audible enough for the caller (scammer) to hear then asked the scammer to call the emergency services and made sounds like they were dying slowly loss of blood. Encouraging the scammer to write down the last voice messages such as please let my mum know I love her etc...
And finally to say, please stay on the line as you are a witness in this crime.
Biting the hand that feeds IT
