Perfectly beleivable scenario for me -
Jeremy rides to WHF - He had a bike & knew the routes.
He gets through the bathroom window without making a noise - He is used to getting in. Found hacksaw used earlier to ensure a quiet entry.
The phones are disabled & gun picked up.
He starts shooting a sleeping June - Blood on the pillow (5)
Neville wakes & gets up & is shot - Torso shots (4)
Neville heads to the kitchen - Back shot (1)
He is caught up and beaten - Gun is now empty. Nevilles black eyes, damaged jaw.
Gun re loaded and Neville shot again - Head shots (3)
June has staggered out of bed. She is shot again (2)
Sheila is woken & told she needs to go into the main bedroom. She is immediatly pulled to the floor, held down & shot. Still alive she is shot again - Two bullet wounds (2)
The twins are shot while sleeping - Found in bed (eight).
Silencer taken off - Not found on gun.
A gun & bible is put on & by Sheila - Both found on/by her.
Bedroom phone brought downstairs & plugged in - No blood on phone.
Kitchen phone hidden - Found under newpapers. In working order.
Silencer put in box in gun cupboard - Found in a box in the gun cupboard.
Exit out of the kitchen window - Lockable from outside.
Back home, wash & get ready to make phone calls.