Third man held over triple murder

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A third man has been arrested by police investigating the murders of two men and a youth at a house.

Police are already questioning two men about the murders of Keith Cowell, 52, son Matthew, 17, and Tony Dulieu, 33.

Mr Cowell, Matthew and Mr Dulieu were killed at the Cowell family home in Bishop's Stortford, Hertfordshire, late on Tuesday.

Two women, Mr Cowell's 54-year-old sister and Matthew's 23-year-old girlfriend, were also badly hurt.

On Friday police arrested two men in Stevenage, Hertfordshire.

And a spokeswoman on Sunday said detectives had arrested a third man - who is in his 20s - at Heathrow airport.

She said all three men were being questioned.

On Saturday Mr Cowell's wife, Nicole, said her husband was "uncommonly kind" and her son "extremely popular".

Relatives of Mr Dulieu, of Billericay, Essex, have yet to comment.