Truth or Dare kill confession student jailed for minimum of 15 years

Tiernan Darnton 21, who has been sentenced at Preston Crown Court to life imprisonment with a minimum term of 15 years for the murder of his stepgrandmother Mary Gregory, 94, in a house fire in Heysham, Lancashire.
Tiernan Darnton 21, who has been sentenced at Preston Crown Court to life imprisonment with a minimum term of 15 years for the murder of his stepgrandmother Mary Gregory, 94, in a house fire in Heysham, Lancashire.

Tiernan Darnton, 21, admitted to killing Mary Gregory during a counselling session, having made the same admission during a game of Truth or Dare with friends

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Mary Gregory, 94, died in a house fire.
Mary Gregory, 94, died in a house fire.

A student who admitted in a Truth or Dare game to murdering his stepgrandmother in a house fire has been sentenced to a minimum of 15 years in custody.

The family of Mary Gregory, 94, thought she was the victim of a tragic accident as an inquest ruled three years ago she died from a dropped or carelessly discarded cigarette.

However, police reopened the case a year later following a confession from Tiernan Darnton, 21, during a counselling session in which he said he killed Mrs Gregory – his stepfather’s mother – by using a lighter to set a curtain on fire at her bungalow in Heysham, Lancashire.

During the probe, it emerged that Darnton had made a similar revelation several weeks after Mrs Gregory’s death, during a game of Truth or Dare with two friends in which he revealed his “darkest secret”.