It would be remarkable indeed if she managed to do all that and not have signs on her nightdress.
The ballistic and pathological evidence would suggest otherwise. And if small traces of victims' blood existed on SC's person/nightdress no one would be any the wiser since testing wasn't carried out and even if it had been blood serology type testing was unable to type small stains.
Only 2 blood stained areas of SC's nightdress were tested: under the armpit and one of the marks which appears to resemble a finger. These stains were consistent with her own blood groups.
Summary non-gunshot injuries sustained by NB most likely location being the kitchen:- Fractures to skull
- Bruising to both eyes not solely associated with fractures to skull but blows from blunt object
- Laceration to right side of nose, 1 blow in association with injury to right eye above
- Bruising and grazing to bridge of nose. Same blow as laceration to right side of nose
- Bruising forehead 1 each side
- Bruising right cheek and temple
- Bruising and abrasions left cheek and temple
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*Laceration right parietal region "severe superficial skin injury"
- Laceration left parietal region 1/4"
- Bruising ulna right forearm
* Pathologist said he was unable to gauge the force used other than for this wound which he described as being inflicted with "considerable force" albeit it caused a laceration wound.
The above non-gunshot wounds were probably not capable of generating medium velocity blood spatter. The pathologist described the instrument used to cause these wounds as "blunt" which in all probability was the rifle. The rifle contained so little blood it was not even possible to group unlike the 1/4" blood flake found in the silencer!
Aside the fractures to the skull the other wounds amounted to bruises and lacerations.