Re A 2000
killing was unlawful (conjoined twins had to be separated otherwise they both would have died, only one survived)
A-G ref 1997
reasonable person in being excludes foetuses
Malchereck and Steel
reasonable person in being excludes brain dead (M stabbed wife, S accused of assaulting women, both V taken off life support)
Vickers
Intention to cause GBH/ Implied malice aforethought