(JMO / MOO) I believe the phone call SE made, which has been covered in MSM as her partner, was to arrange for them to meet halfway on her journey around Clarence Avenue or to meet at their home (not hers), which would mean walking down that road. I wondered if her phone went cold because the person she called was on the road and she had met them, perhaps switching her phone off, having now made contact in person. Maybe she just wanted some company on the 15minute walk to meet them halfway, hence why she called them. Perhaps they had an argument, they caught up with her, and then something happened. Perhaps she made it to this person's house... Knowing the person would not arouse suspicion from Joe Public,hence why noone has come forward to say they saw/heard anything. From private sleuthing, and reference to a 'close friend' being doorstopped by the Daily Mail, that 'close friend' lives within the vicinity of Brixton Water Lane and Lambert's Road, which is an area of interest to the LE.