[Angus]

Hmm, Tabak and his girlfriend split up in September and he was living alone. She bears a striking resemblance to Joanna. The landlord spoke to Tabak that evening telling him about Greg's difficulty in starting his car, so he would have known Joanna would be alone. Two separate people heard a woman scream "help me" around 9 pm on 17th coming from the direction of his flat. All pretty circumstantial at the moment, but adding up.