murder = a person can be found guilty of murder if they unlawfully kill a reasonable person in being under the King's peace with malice aforethought express or implied
actus reus = unlawful killing
result crime, V must have been killed by act or omission (Gibbins & Proctor)
test for death = brain stem died (Malcherek)
a foetus is not a reasonable person in being (AGs ref no3)
King's peace is not in a time of war
mens rea = malice aforethought express or implied (Vickers)