More time for babysitter death quiz
Police have been given more time to question a man arrested on suspicion of murdering a teenage babysitter.
Catherine Wynter, 19, was stabbed to death as she looked after her young niece and nephew on Boxing Day.
The body of the teenager, also known as Katie, was discovered by her mother at 8am on December 27. She had spent Boxing Day night at her sister's house in Borehamwood, Hertfordshire looking after her two young relatives as a favour for her sibling who was out.
The children, aged three and four, were in the house at the time of the murder but were not injured. It is believed they could hold vital clues about the incident.
Police said they had been given more time by a court in Hatfield to question an 18-year-old man from Borehamwood who was arrested on Tuesday evening. They now have until Friday night to question him.
On Wednesday night a 26-year-old man from Islington, north London - held in connection with the killing on Tuesday - was released without charge. Both men were known to Miss Wynter and her sister, but were not direct relatives.
Detective Superintendent Michael Hanlon said police would not give any further details about their relationship but they would come out "in due course".
Specially trained officers are expected to continue questioning Miss Wynter's niece and nephew but the process is expected to take some time because of their young age. Forensic examination is also continuing at the scene.
In a statement, Miss Wynter's family said she was "a quiet girl who enjoyed life". They added: "She was a loving auntie to her niece and nephew who she was looking after on Boxing Day.
A post-mortem examination confirmed that Miss Wynter, who also went by the surname Briscoe and lived elsewhere in Borehamwood, died as a result of stab injuries. Mr Hanlon said no weapon has been found but a number of searches are taking place.