JMOO .. My thinking has always been that it is possible .... NBC could have driven to and parked his vehicle in the Kenmore Shopping Centre parking lot and, was picked up in another vehicle and dropped back there (to enable him to then drive back home).
He may have dropped someone else off at GBC's house, in case the children woke up, on his way (having driven via Rafting ground Rd, and then up Brookfield Rd to the roundabout to park his vehicle).
Being dropped off at the roundabout upon returning from Kholo Creek, he would then drive home.
The person who stayed with the children would still be there at 6 am.
I think you might be on to something there. I still feel that despite multitudes of problems in the marriage, GBC didnt plan in advance to murder Allison. I seriously dont think he was "clever" enough to pull it off! I think though that there was a nasty argument and it all went badly from there. Pre-meditated? Possibly, but if so he could have planned way better than he did
After Allison died at the house, could GBC have phoned NBC and OW (the facetime call or used a landline) in a panicked state after the fight. Come and Help! OW has then gone to GBC house to stay while the girls are asleep. Lots of children sleep very soundly through lots of noise.
Is it possible that the argument ended up outside on the patio?, which would explain the foliage forensics from outside plants not found at Kholo Creek
? NBC has then agreed to meet GBC at the bus stop at the roundabout to help with the body disposal. Dont know which car NBC has at this stage...did he have the rental car that OW had? His car is quite instinctive.
Weren't there reported sightings of two cars travelling very close together towards Kholo Ck..cant remember the colours or make right now.
So OW is now at the GBC residence and lets herself in & stays the night. OW may not know anything at this stage. Imagine if he phoned her to say "Hi OW Allison is really sick and I have to to take her to hospital. The girls are asleep, but please come over now so they aren't alone" EBC would have been at the Snr BC place to look after OW children overnight.
NBC & GBC managed to dispose of he body. I too am puzzled by the iPhone. I am surmising they they it in the creek and it has been washed away.Then GBC drives and drops NBC at the roundabout so he can drive himself home.
Thoughts??
All conjecture and only my opinion