Mr Fossil, I think you're under an illusion about how long Reeva survived. I have bolded the relevant part in two of your recent posts:
I know the forensics man referred to arterial spurts, but the word "spurt" was a clear mistake for "spatter". We have now had pretty good pics of the blood marks in question and none of them shows spurting arterial blood pattern. We also have pathologist Saayman's statement that vital functions would have ceased almost immediately upon the masssive brain injury and Dr Stipp's evidence that Reeva's eyes were already veiled when he examined her. There was a long and sometimes lively dispute about this between Viper and the other medics but Viper's view cannot seriously be challenged now that we can examine the pics ourselves and we have had Stipp's evidence.
One consoling result of this is that Reeva was spared the ultimate indignity of dying in her killer's arms. She was dead before he reached her.
The only evidence we now have for postulating Reeva's survival for several minutes is from OP himself - draw your own conclusions.
BTW this may show why no one was especially interested in taking Reeva urgently to hospital. It was obvious she was dead.
I don't think she lived long at all, and certainly not for 15+ minutes. I believe the second set of bangs were the gunshots and the first set were OP terrorising Reeva. The bash to the bath (which would have been loud too) probably fits in with the terrorising bangs. I couldn't make out definitively from the photo whether the bath had been hit more than once.