Thankyou all for your kind words it does mean alot, it feels like a very bad dream. It's been 6 weeks now and still feels like yesterday when the police turned up. The cars are keeping me a bit busy and my 9 year old daughter, however I just cant process it and the shock.
The M40 doesn't have sufficient cameras and police are relying on others for any dash cam/etc, it's madness with how many cameras there everywhere are if you drive in the bus lane or park on a double, yet both my parents died in in a horrific crash near junction 4-5 with no cameras.