A MAN was being questioned today over the unsolved murder of Rachel Nickell.

Rachel, a 23-year-old ex-model, was stabbed 49 times while walking on Wimbledon Common with her two-year-old son on July 15, 1992. Her killer has never been caught.

Scotland Yard officers are interviewing a 40-year-old man who has not been named.

A spokesman also declined to comment on a report on Sky News that the man was believed to be serving a sentence at Broadmoor secure hospital in Berkshire.

He said: "Metropolitan Police officers investigating the murder of 23-year-old Rachel Nickell on July 15, 1992, are interviewing a 40-year-old man today.

"The interview is part of an on-going inquiry into Rachel's murder."

It is understood that the man has not been arrested.

Colin Stagg, from Roehampton, west London, was arrested for the murder and spent a year in custody before being cleared in 1994.

A judge at the Old Bailey threw the case out on the grounds that police had used a "honey trap" plot to encourage him to confess.

Mr Stagg today said he was very pleased to hear of the latest development.

He said: "It's about time. If he gets charged, hopefully things will start moving forward, not just for me, but for the Nickell family as well.

"I'm still getting called a murderer.

"If he's guilty of this crime he deserves everything he gets, for the sake of the family."