The mother of murder victim Jane Longhurst will visit Brighton and Hove this weekend to drum up support for her campaign to ban violent sex web sites.

Liz Longhurst will attend a Jane Longhurst Memorial Concert by the Brighton Youth Orchestra.

She said: "I feel very honoured they should hold a concert in Jane's name and I am sure I will feel Jane's presence there on the night."

Graham Coutts, 36, strangled Miss Longhurst at his home in Waterloo Street, Hove, in 2003 to satisfy his perverted sexual fantasies.

He kept the 31-year-old's body in a box in his shed for 11 days before moving her to a storage unit in Brighton for a further two weeks.

The special needs teacher's burning body was found on Wiggonholt Common, near Pulborough, on April 19, 2003. Coutts was jailed for life and will serve a minimum 26 years.

Coutts downloaded thousands of images of strangulation and necrophilia before killing Miss Longhurst.

Her mother has organised a 20,000-name petition calling for a worldwide ban on violent sex web sites, a campaign now backed by Amnesty International and by scores of MPs.

Many of Miss Longhurst's friends from Uplands School, Brighton, and Oakmeads Community College, Burgess Hill, where she taught are expected to attend the concert at the Hove Centre in Hove Town Hall on Saturday.

Mrs Longhurst said: "The concert will not be just to remember Jane but also to celebrate the wonderful talent of the youth orchestra."

Coutts, who argued Jane died by accident during consensual sex, has won leave to challenge whether the jury should have had the alternative charge of manslaughter to consider before it returned its murder verdict.

If the House of Lords finds in his favour, it could rule the case is worthy of a retrial.

Mrs Longhurst will be lobbying for support for her campaign after Saturday's concert. The issue of a worldwide ban on the web sites was raised during the G8 summit at Gleneagles last week.

For more information on the concert, call Brighton and Hove Music and Performing Arts on 01273 293524.