Sky News: In the UK, grandson confessed to killing his grandmother while playing Truth or Dare 
In the UK, 21-year-old confessed to killing his 94-year-old grandmother during Truth or Dare. Sky News writes about this.
An elderly woman died in a fire in her own house. The police believed the fire was due to a dropped cigarette. The British woman was poisoned by carbon monoxide and died in the hospital.
Soon, her grandson Tyrnan Darnton, during a game of Truth or Dare, confessed to friends that “he may have killed someone”. The police then reopened the case. The young man admitted that he set fire to the house because he did not want his grandmother to suffer from progressive dementia.
Earlier in the Novosibirsk region, a local resident handed over his 61-year-old grandmother to investigators, who committed murder 10 years ago her husband. She told the investigators that he was beaten in the street by unknown persons when he left the house at night. The culprits were not found then, the investigation was suspended. Later, the case was reopened, because the grandson of the Russian woman told investigators that it was his grandmother who killed her husband.