Officers have arrested a 31-year-old man on suspicion of murder and he remains in custody today.
More top news
The son of the Yorkshire Ripper's first victim has responded to a letter sent to ITV Calendar by the serial killer.
The former England cricketer reportedly suggested he would have a better chance of being knighted if he "blacked up".
The two-page letter addresses allegations that Sutcliffe attacked men before murdering 13 women