What is the fine-grained topic of the following text: A burglar who killed a former Royal Navy officer by running him over with his own car has been ordered to serve a minimum of 27 years in prison.Ryan Gibbons, 29, was found guilty of murdering Mike Samwell, 35, after breaking into his home in Chorlton, Manchester and stealing his car.Gibbons admitted breaking into the house and stealing the car but denied deliberately driving over Mr Samwell.Gibbons, of Steven Court, was sentenced at Manchester Crown Court. Only return the topic.
Conviction and sentencing of a burglar for murder in Manchester