I have enjoyed reading this thread this morning as I am something of a true crime fan (Jack The Ripper, Yorkshire Ripper, Krays, West, Huntley, etc) and even drove to gawp at his house when I stayed in Bradford in 2014 and have read books on him including the imperious Wicked Beyond Belief and Somebody's Husband, Somebody's Son which is less forensic but takes a look at the man behind the beard.
As many have discussed on here, I never understood why so much belief was placed on the Wearside Jack tapes when so much evidence pointed to Sutcliffe who was a local man, a lorry driver and so distinctive looking and so similar to the photofits of survivors and witnesses - the black afro hair and black beard. He also had a high pitch Yorkshire accent as described by survivors, there are a couple of interviews with him on the internet and its fair to say his voice is rather distinctive.
He was interviewed several times and the Police considered him AND Sonia to be rather odd and suspicious but of course, no Wearside accent.
I was only a boy when the Ripper murders were occurring in sleepy Shropshire but I can remember t the time the fear gripping the nation with this faceless stranger prowling the street committing untold horrors on innocent women.
Reading SHSS it was evident that Sutcliffe in reality was quite a wimpy, insignificant nonentity of a man. A mommy's boy quite unlike his rough and tough Yorkshire father and brothers who saw him as a bit of an outcast. Whilst they liked football, cricket, hunting, etc, Sutcliffe was far more tied to his mother's apron strings. His main interest (apart from the obvious) seemed to be cars, motorbikes and driving. Gravedigging then lorry driving were his ideal careers.
He was actually caught parked up a secluded lane with a prostitute in his car. The Police questioned him and he claimed that they were lovers but the car had false plates. Before taking him in, Sutcliffe asked if he could relieve himself in the bushes. The Police allowed him to. One of them though was suspicious and returned to the scene the next day to discover that Sutcliffe had actually relieved himself of his killing kit in the bushes - a ball pein hammer and a screwdriver. They finally had their man.
A man who nobody will mourn, maybe Sonia as I think she was still in contact and still lives in the same house at 6 Garden Lane but that's about it.