Thanks, now that gives an interesting perspective in terms of a targeted perpetrator trying to locate where Julia lives.
I know that generally police are discreet about their profession and whereabouts on social media but surprisingly this Strava account clearly gives away Julia's home address and regular exercise routes. It shows Julia made use of all the local paths and routes including the one where she was murdered. The most recent route recorded takes the same path on which she was murdered.
It wouldn't take much for somebody like a criminal that encountered her through her work to find that profile with just a name, (the blue line on the profile confirms it) and then track down where she lived and exercises and plan an attack precisely even if they weren't initially familiar with the area or what she looked like.
This gives more credit now to the theory that this was a planned attack and that person wouldn't necessarily need to be local or know her directly in that they could easily track her down and plan an attack. The lack of witness information, weapon and forensics (as far as we are aware) and no motive, suspect or arrests after over a week is making me more inclined to think this was related to her profession, targeted and carefully planned.