Police are investigating new leads in the hunt for a killer who struck 34 years ago.

Following a plea last week, a number of callers have told police who they think stabbed 12-year-old Keith Lyon on Downland at Woodingdean, Brighton, in 1967.

Detective Superintendent Dave Gaylor, who is heading the inquiry, said: "We have received six or so calls which we are looking into."

Keith, the son of the late band leader Ken Lyon, was walking from Ovingdean to shops at Woodingdean when he was attacked.

Last Friday, his mother, Valda Lyon, 82, made an emotional plea for information.