THE daughter of a young mum murdered in her home 30 years ago has spoken of the horrific moment she discovered her dead mother, as part of a new appeal on the BBC's Crimewatch which is being broadcast now.

Lynda Farrow was four months pregnant when she was brutally stabbed to death at the age of 29, at her home in Whitehall Road, Woodford Green on January 19, 1979.

Her bloody body was found by her eight-year-old daughter when she came home from school early one afternoon because of heavy snow.

Her daughter Justine spoke tonight just minutes ago of her chilling discovery, as part of a renewed police appeal to catch Lynda's killer.

She told Crimewatch: "She didn't arrive to pick us up from school. We waited and waited, I think until everyone had gone home.

"You do have that horrible sick feeling in your stomach when something like that happens."

The youngster then walked home.

"I remember seeing these massive footprints in the snow. I saw her car so I knew she was in.

"I went straight to the front door and knocked and knocked.

"I didn't hear anything.

"I decided to look through the letterbox and there she was. There was a knife next to her.

"I just didn't know why or how someone could do that. What could she have done?"

During tonight's Crimewatch, it also emerged that Ms Farrow's ex-partner was "unhappy" that she was in a new relationship.

The man has since died.

Nevertheless, police said they did not have a motive for the murder, and her killer may well have not known her.

DCI Rebecca Hamilton, from the Met's Homicide and Serious Crime Command, said that despite the length of time since the murder "loyalties and alliances may have changed" and someone might still know what happened to her.

A £20,000 reward is available for anyone who can help with information leading to the arrest and prosecution of Ms Farrow's killer.

The money will be awarded at the Met's discretion.

Anyone with any such information is asked to call the Met's incident room at Belgravia on 020 7321 7228 or should call Crimestoppers anonymously on 0800 555 111.

An update on Crimewatch's involvement in the case will be broadcast at 10.35pm later tonight on BBC1.