What constitutes Murder?
Murder is the unlawful killing of another in the queen's peace, with malice aforethought. It is split into the act of the killing of another, with the intention to kill or cause grievous bodily harm. It carries a mandatory life sentence unless a defence applies which reduces the offence to one which carries a maximum sentence of up to life imprisonment, hence allowing the judge some discretion in sentencing.
One should note that unlawful killing can be an act or omission. Animals and foetuses are not included in the definition of murder. One's intention can be direct or oblique, the latter meaning that 'death or serious bodily harm was a virtual certainty as a result of the individual's actions,' [R v Woollin].