If we return to the time when there was no clotting factor which could be given to hemophiliacs, wounds frequently bled into muscles and joints. The pain it caused them -and it's well documented in descriptions of episodes suffered by Alexei, Tsarovitch of Russia- is was excruciating. All we can hope for is that the first shot rendered her unconscious enough that she never experienced it.
Oh yeah, and this happened when her body was downstairs in the kitchen, as per the timed police radio message log accounts, 7.35am, 7.37am, 7.38am, 7.42am, 7.45am and of course 8.10am - Sheila downstairs in the kitchen, never upstairs at all, any time sooner than 8.10am, unless you believe the witness statement accounts which are at odds to the police radio log accounts, where only one body was present downstairs, and the other four bodies found upstairs?
Nobody should believe anything that Essex police have got to say in this matter, they can't even tell the correct time of day, let alone do simple arithmetic, involving the presence of two bodies downstairs, or four bodies upstairs, two + three = 5, two + four = 6, pathetic cops, full of shit and nonsense, and of their own importance! Many of these blighters were bullied in primary school, and joined the police so that they could bully unwitting members of the public en masse!