The man who deceived police during the Yorkshire Ripper case was this week jailed for eight years.

Unemployed alcoholic John Humble was sentenced at Leeds Crown Court after admitting perverting the course of justice.

The first victim of the real killer, Peter Sutcliffe, is thought to be Keighley woman Anna Rogulski, who was left battered and bleeding in North Queen Street, in July 1975.

The following month came an attack on Silsden teenager Caroline Tracy Browne, who was assaulted while walking.

Humble, known as Wearside Jack, sent letters and an audio tape to police during the Ripper investigation.

Three women were killed after the letters and tape diverted the focus of the investigation to Sunderland.

Sutcliffe murdered 13 women, mostly prostitutes or students, across West Yorkshire over a six year period.

At his trial, he also admitted seven charges of attempted murder and was jailed for a minimum of 30 years.

Humble, 50, of Flodden Road, Sunderland, sent two letters and the tape to Assistant Chief Constable George Oldfield and a letter to a national newspaper.

He was arrested last year after DNA advances brought a one in a million match with one of the envelopes he used.