Murder is defined by Lord Coke (1797) as the unlawful killing of a reasonable person in being under the king's peace with malice aforethought and express or implied intention
An unlawful killing is that you cannot consent to your own death or GBH, under the case of R v Brown
A reasonable person in being cannot be a foetus (A-G ref.) or braindead (Malchereck v Steel)
Under the king's peace means there is no ongoing war at the time of the killing.
Causation must be proven in fact and law for murder, R v White and Kimsey apply the tests.
Malice is defined as the defendant having a desire to harm.
Aforethought means that the defendant must have thought about the act before committing it.
Express intention is where the defendant intended to kill (Mohan).
Implied intention is where there was intention to cause GBH/
Foresight of consequences, under Vickers, is if the death was a virtual certainty to the reasonable person.
The sentence for murder is a mandatory life imprisonment,