Tiernan Darnton sentenced to life in prison for murdering Mary Gregory, 94, in house fire in Lancashire
A student has been sentenced to life in prison for the murder of his step-grandmother after confessing to the crime in a game of truth or dare.
Tiernan Darnton, 21, who was caught after a counsellor alerted police to the confession, was told by a judge at Preston crown court that he must serve a minimum of 15 years of his sentence.
