G'day Doc Watson, How do you do? I have taken the liberty to take your scenario and amend it slightly. See if this works. Sorry about the ambulance and hospital thoughts, but I can't see that fitting in with a proper murder plan. 1. Allison and GBC have a blazing row. GBC attempts (with the previously thought out plan) to kill her. But she puts up an almighty battle. Unexpected. Allison gets severely injured. (There is a gap here.) 2. GBC calls NBC via Facetime and says "We've had a fight, Allison is hurt. She might even be dead. 3. NBC drives OW over, OW stays at the GBC house and NBC decides to go with GBC. 4. Somewhere up near Kenmore, or just beyond, something happens that makes them realize Allison is dead 5. GBC decides to drop NBC off at the roundabout rather than return home, and rather than involve him in what was to come next 6. GBC drives out along Moggill Rd to Kholo, while NBC sits, very upset, at the bench at Kenmore bus stop - not even thinking about cameras, lights, etc. (No that can't be right either as the alleged sighting was 11.30pm, and the Facetime call was 12.30am Need to clarify events of this hour.) 7. GBC returns, picks up NBC, and goes home to Brookfield. 8. NBC and OW stay and help clean up the Captiva, signs of the fight, dispose of the tissues, rags, towels or clothing that GBC used to dry the scratches, etc 9. Later in the morning, OW takes the girls to school just as the police arrive, following the charade of the phone messages, "gone for a walk" thing. NBC is also still there.