Interesting, but as Jennery says himself he never met Sheila, and even in his own patients it was impossible to predict future behaviour. Whilst his assertion that there was a common theme of possession with the Devil from 1983 is worthy of note I also read that in his opinion it's not usually the case that after altruistic killings the perpetrator kills himself or herself alongside.
Sheila was predisposed to believing in the devil, her Iranian boyfriend was the devil, her two sons were the devil, as disturbing as it was, she had the devil inside herself! Nothing which was done to the four victims was anything so shocking that none of us would expect the devil not to be capable of!
Sheila was the only victim who had been shot upwards, all the others were shot across at, with the exception of Neville Bam,ber who had shots to the top of his head when he had no strength to resist...