True. What's key to any investigation is figuring out the accepted truth of events then reviewing all pieces after that against it. If it's credible, do you have to change the accepted version etc... Continuous review and counter assessment or 'red teaming' is key.
If after 6 years someone...
Brilliant effort but I refer you to my previous post: he would have to be in two places at once based on the metropolitan police timeline. Mum left dad at table, at the same time man seen walking to beach.
That doesn't mean anything. it may have triggered an upsetting memory, may have triggered a visual or aural memory or may have been distracted by a moving microphone then talked to that until her concentration was broken again.
Eye access queues have to be used ONLY when controls have been set...