Now that we have a new suspect, we can try to see where he fits in. Here is a time line that I had prepared:
ca 12:30: JY and GR have lunch at the Hope & Anchor gastropub, 38 Jacobs Wells Road, Bristol. 'They shared a bowl of cheesy chips and drank Coke [...]. Barman Jack Carrington, 23, said: "They came in at 12.30pm. It was really busy so they sat in a corner for about 20 minutes."' (The Sun)
ca 6:00: CJ calls PS (who was sleeping) to ask for his jump-leads and together they start GR's car who 'readied himself to travel to Sheffield for the weekend' (Daily Mail).
ca 6:00 also: JY arrives at Bristol Ram pub, 32 Park Street, with colleagues from Building Design Partnership.
ca 8:00: JY leaves Bristol Ram, with a black Eurohike rucksack and a black plastic bag allegedly containing her work shoes (she is now wearing boots).
[Bristol Ram to Waitrose: 10 mn walk, according to Google Maps]
ca 8:10: JY stops at Waitrose store, 85 Queens Road, Clifton, but does not buy anything.
[Waitrose to Bargain Booze: 11 mn walk]
ca 8:20: JY texts MW: 'Where are you? Do you fancy a drink?'
8:24: JY enters Bargain Booze off-licence (now named Baryah's), 22 Regent Street, Clifton, with possibly her mobile in her hand.
8:29: JY leaves Bargain Booze with two 300ml bottles of cider in a white plastic bag.
ca 8:30: JY phones RS. ('I got a call from Jo as she was on her way. It was to arrange our plans for Christmas Eve. [...] She was trying to persuade me to spend New Year in Edinburgh with her too. I couldn't commit but our plans for Christmas Eve were set.')
[Bargain Booze to Tesco Express: 1 mn walk]
ca 8:34: JY enters Tesco Express store, 34 Regent Street, Clifton.
8:37: JY leaves Tesco with a fresh pizza in her left hand, and her white and black bags in her right hand.
[Tesco Express to 44 Canynge Road, Clifton: 11 mn walk]
ca 8:50: JY is probably back home.
ca 9:00: neighbours hear screams possibly coming from JY's flat.
Soon after 9:00: as he is parking his car in the street, CJ sees three people leaving his mansion house, 'through the communal entrance', according to neighbour Liz Lowman. He reportedly said to friends that he thought one of them was JY, but he declared later to the press, 'I made some comment which was very, very, very much vaguer than that.'
ca 9:20: MW texts JY saying he is 'at the office Christmas party' and he is 'busy' ('It was just a text message between friends. I didn't see her message at first because I was at the party.')