Well quite easily given shooting someone else is a simple point-and-press job, whereas shooting yourself involves lying the gun along the length of your body, pulling the trigger away from you because it is now reversed, and having to angle your head right. How could Bamber make such a pig's ear of it, as he was used to the gun, a crack shot, had no trouble shooting everyone else and apparently had his sister's complete cooperation.
Especially as he knew she should only be shot once.
I must look up some more info about Family Annihilators so you can see they take out everyone - and plan it in advance. I reckon she could have been hoping Colin would stay.
Feeling a bit burnt-out playing 'fetch' on the Dewani thread, so doubt it will be tonight.
I know you're all sick of me droning on about South Africa, but it did have a very high rate of Family Annihilators - something like the Bamber case happens every other weekend - and it always struck me as odd that the maid (as they like to be known) would get out unharmed, but they would frequently invite the in-laws or parents over, or they'd go over to negotiated, then they'd be shot as well. It seems from what I've read about Family Annihilators that that's quite common, as it's just their family they want to kill - in Sheila's case she might have fallen into the category that thinks they are saving everyone from a bad world and they'll all be reunited happily in the afterlife. It's practically a mercy-mission in their eyes. I believe it came out that Sheila had told her therapist her children were sons of the Devil and she was afraid she might kill them, as well as having suicide attempts.