Memorial service planned for Wakefield schoolgirl Elsie Frost

One the 50th anniversary of one of Britain's oldest unsolved murders, a former detective admits he is still haunted by the fact the killer has not been caught. Teenager Elsie Frost was stabbed to death in Wakefield in 1965 and last week a new appeal was launched by police. David Hirst reports.

The family of Elsie Frost have released 14 doves to mark 50 years to the day since their 14-year-old sister Elsie was murdered on a tow path in Wakefield.

Colin Frost and his sister Ann also took part in a ceremony to remember Elsie at St.George's Church in Lupset.

Police and relatives of murdered Wakefield schoolgirl Elsie Frost have thanked residents after officers received a number of calls offering information, following a fresh appeal for information about her death.

Colin Frost and Anne Cleave, Elsie’s brother and sister, have said they have been extremely encouraged by the response from residents to the public appeal.

Elsie was stabbed to death 50 years ago on Friday while next to the Caldar and Hebble canal in Wakefield. Her family will hold a memorial service for her in the city, while police say they are evaluating the information brought to their attention via the public appeal.

Detectives in West Yorkshire are tonight following up new leads in a major investigation 50 years after a 14 year old schoolgirl was stabbed to death in Wakefield.

Police now believe Elsie Frost, who was killed next to the Caldar and Hebble canal, may have had a secret boyfriend.

Her elder sister and younger brother say they're desperate to know how, and why, Elsie was killed and were behind today's appeal by police.

Katie Oscroft reports:

Detectives investigating the murder of a Wakefield schoolgirl 50 years ago say they have new leads.

14-year-old Elsie Frost was attacked near the Caldar and Hebble Canal in 1965.

Katie Oscroft reports.

Colin Frost, the brother of Elsie, who was murdered near the Calder and Hebble Canal in 1965, believes justice needs to be done for his family and the people of Wakefield.

He was speaking after detectives investigating the murder of the schoolgirl announced they have new leads in the case.

Police have already received calls after they re-opened the case of Elsie Frost, who was murdered on a towpath near the Calder and Hebble Canal in Wakefield in October 1965.

Elsie's brother, Colin, was six at the time of her death and today returned to the scene of the murder.

He said that Elsie "was like a second mum to me.'