Police are following up two new leads in the case of a schoolgirl who was murdered in 1984, after an appeal on the BBC's Crimewatch programme.
Women concerned about their partners' behaviour called the show
Lisa Hession, 14, was found sexually attacked and strangled 500 yards from home in Leigh, Greater Manchester.
Police officers received 27 calls after the programme was broadcast from Manchester on Tuesday.
Some of them were from women concerned about the behaviour of their husbands or boyfriends when Lisa was murdered.
Lisa's mother, Christine, 59, appeared on the show along with Det Insp Jeff Arnold of Greater Manchester Police.
The case is one of more than 100 being reviewed by GMP's Cold Cases Unit.
Lisa and her boyfriend had been at a friend's house on the evening of 8 December.
At 2215 GMT, she left her friends behind and began the familiar 15-minute walk home to Bonneywell Road alone.
It was a route she had taken many times and it was well used by other people. She never made it home and was discovered just before midnight in an alleyway.
The case of Gabriel Egharevba, 17, who was murdered as he cycled through Longsight in January 2000, also featured on the programme.
Detectives received calls from several viewers on Tuesday night, who all named the same two suspects.
Police are offering a reward of £10,000 for information leading to the arrest and conviction of those responsible for Gabriel's murder.