Fight: During Adebolajo and Adebowale's sentencing, violence broke out in the Old Bailey dock and the killers began hurling abuse at the judge and fighting with prison guards.

The judge said the men had carried out the killing to show ‘your extremist views, to murder a soldier in public in broad daylight and to do so in a way that would generate maximum media coverage including getting yourselves killed by armed officers who were bound to arrive at the scene’.

Assistant Commissioner Cressida Dick, who heads Scotland Yard's counter-terrorism command, said: ‘Today's (Wednesday's) sentence reflects the true horror of their actions in taking this young man's life in such a barbaric way.

He was unconscious and certainly unable to defend himself.

You both exited the car armed with knives and over a period of around 2-3 minutes you butchered Lee Rigby - going, as you were well aware, far beyond what was needed to murder him.

His mother Rebecca told Justice Sweeney that he will grow up to see images of his father' horrific murder He said: 'After all he had been through in Afghanistan all Lee was doing was just walking through London.

Just seeing on the television and seeing the violence of it you just can't comprehend.You take it all in and it doesn't click in your head, it is like being somewhere else.He said: 'The scale of the impact on them of the nature of the murder of Lee Rigby in the circumstances made so public during the trial and after such a killing causing a son to pre-decease his parents and stepfather and leave those others who loved him without a husband or a soul mate is too obvious to set out in detail.You decided, between you, and in order to advance your extremist cause, to murder a soldier in public in broad daylight and to do so in a way that would generate maximum media coverage, including getting yourselves killed by armed officers who would be bound to attend the scene in the aftermath of the murder - thereby expecting that you would become martyrs and each gain a place in paradise. You Adebolajo acquired an old handgun which, although it did not work, was to be used at the scene to keep the public at bay and to threaten the armed officers with when they arrived.The day before the murder you Adebolajo bought five knives and a knife sharpener - which you used to sharpen some of the knives in preparation for their use in the murder.The impact carried him up onto the bonnet of the car breaking five vertebrae in his back and five ribs.