Witness Amanda Donnelly Martin was passed a warped handwritten note by one of Fusilier Lee Rigby's murderers.
Ms Donnelly Martin was at the soldier's side, attempting to comfort him as he lay in the road when Michael Adebolajo handed her the note.
It appears to be an attempt at explaining or justifying the barbaric murder - urging the removal of "so-called politicians" and making bizarre references to "international armed robbery" and "bewitching tongues".
In full it read: "'To my beloved children, know that to fight Allah's enemies is an obligation. The proofs of which are so numerous that but a handful of any of them cuts out the bewitching tongues of the Munafiqeen (hypocrites).
"Do not spend your days in endless dispute with the cowardly and foolish, if it means it will delay you meeting Allah's enemies on the battle field.
"Sometimes the cowardly and foolish could be those dearest to you so be prepared to turn away from them.
"When you set out on this path do not look left or right.
"Seek Shaheed Ala oh my sons, so that you might be raised together and if it is Allah's decree that you're not to be in the hearts of green birds then be ready for to enter the university of Joosuf Sijn (sic) be patient there and be firm there and Inshallah you will meet your lord with him pleased with you.
"Verily Allah is with those who are patient. If I live beyond this day and you find me talking other than this then know that perhaps Allah has left me to stray.
"If you find yourself curious as to why carnage is reaching your own towns then know it's simply retaliation for your oppression in our towns.
"Many of your people are aristocrats that directly benefit from invasion of our lands without material loss.
"Whereas the average Joe Bloggs working class man loses his sons when they're killed by our brothers, when the heat of battle reaches your local street it's unlikely that any of your so-called politicians will be at risk or caught in crossfire so I suggest you remove them.
"Remove them and replace them with who will secure your safety by immediate withdrawal from the affairs of Muslims.
"Muslims will trade with you on fair terms but understand that the days of your international armed robbery is (sic) drawing to a close.
"To humble yourselves willingly is better for you. May Allah guide your nation to the truth."
Woolwich killer Michael Adebolajo was arrested by Kenyan authorities three years ago amid fears he was attempting to join an al Qaida-linked militant group.
Shortly after he murdered Fusilier Lee Rigby, it emerged fanatic Adebolajo was arrested with five other men near the border with Somalia.
Adebolajo was preparing to cross into the war-torn country to train and fight with militant group al-Shabaab - the group behind the attack on the Westgate shopping mall in Nairobi that left 67 dead.
Photos showing Adebolajo in court in Kenya surfaced, while his brother-in-law later claimed he was tortured "violently and sexually" after he was arrested.
In court, Adebolajo said he wanted to move to Somalia so he could live in a country that practices "sharia law".
A Foreign Office spokeswoman confirmed a British national was arrested in Kenya in 2010 and that it provided consular assistance.
A Kenyan government spokesman later said Adebolajo was arrested under a different name and taken to court before being handed to British authorities.
Al-Shabaab means The Youth in Arabic and it emerged as the radical youth wing of Somalia's now-defunct Union of Islamic Courts in 2006.
Numerous reports of foreign jihadists going to Somalia to help al-Shabaab have emerged - including the recently absconded UK terror suspect Mohammed Ahmed Mohamed.
It is banned as a terrorist group by both the United States and the UK and is believed to have between 7,000 and 9,000 fighters.
Intelligence and security chiefs have frequently warned that Britons are increasingly heading to the Middle East and Horn of Africa for terrorist training in preparation for attacks in the wake of the Arab Spring.
Both Adebolajo and his partner-in-terror are of Nigerian origin but are not thought to have any links to Nigerian groups such as the jihadist militant organisation Boko Haram.
The group is the most prominent terrorist threat in Nigeria. The group's extremists aspire to establish Islamic law in Nigeria and carry out attacks across states mainly in the north.
In 2011, Boko Haram claimed responsibility for the bombing of the UN building in the Nigerian capital of Abuja, which killed 23 people in an act that showed the group could target Western interests.
The group, whose name means "Western education is sacrilege", was blamed for nearly 800 killings last year alone.
By Margaret Davis
Here are profiles of Lee Rigby's killers, Michael Adebolajo and Michael Adebowale.
Michael Adebolajo horrified millions of people by appearing on camera with bloodied hands clutching a knife and a meat cleaver moments after killing Lee Rigby.
The 29-year-old, who was raised as a Christian, became a committed Islamic extremist who tried to join jihadis in east Africa, and then brought terror to the streets of the UK.
In the shocking footage he was seen ranting about how Muslims in other countries had to witness similar horrors to that which he and Michael Adebowale had wreaked in south east London.
Another film clip captured him charging towards police clutching a knife and a meat cleaver, and flying through the air after he was shot by the embattled marksmen.
Giving evidence in court, he only showed emotion when talking about his religious beliefs, but remained calm when describing his chilling attempts to decapitate Fusilier Rigby.
He told jurors that he had converted to Islam in 2002 or 2003, when he was a student at the University of Greenwich, and chose to take the name Mujahid Abu Hamza.
Adebolajo said he wanted to be called Mujahid, meaning fighter, after he learned "how much Allah loves the mujahideen".
He was born to Nigerian parents at King's College Hospital in south east London on December 10 1984, and later went to Marshalls Park School in Romford, east London, where he made friends with Kirk Redpath, who went on to become a Lance Corporal in the British Army and was killed in an explosion in Iraq.
Adebolajo told jurors that most of his friends growing up were white British, and that he blamed Tony Blair for Mr Redpath's death.
His nurse father Anthony and social worker mother Tina had tried to dissuade him away from the clutches of Islamic extremism, but in 2010 he was arrested in Kenya, apparently trying to get to Somalia to join the terrorist group al-Shabaab.
Adebolajo said he wanted to get to the African country so that he could live under Sharia law.
His friend Abu Nusaybah claimed that Adebolajo was asked to work for the British security services after he was caught, and Adebolajo told police that MI5 had visited his home.
The Commons Intelligence and Security Committee is looking at what security services knew about the suspects before the murder, and is expected to make at least some parts of its findings public.
In police interview and throughout his court appearances he rambled on about his political and religious motivations.
Before his defence case began, a hearing took place to establish ground rules for what would happen in court, to try to stop him using the Old Bailey as his soap box.
Mr Justice Sweeney told his barrister David Gottlieb: "In the light of what we all saw in the (police) interviews what needs to be clearly understood is that in the court arena at least a question is not a cue for a speech, it's a cue for an answer."
Adebolajo was held at high security Belmarsh prison after he was charged with the murder of Fusilier Rigby, and there he claimed that he was attacked by a group of prison officers, and lost his front teeth when they put him under restraint.
Five members of prison staff were suspended after the incident, but the Prison Officers' Association insisted that only approved restraint techniques had been used.
Michael Adebowale attacked three police officers in his first 24 hours in custody, it can now be reported.
The 22-year-old, who was confronted by courageous "Woolwich Angel" Ingrid Loyau-Kennett in the aftermath of Fusilier Rigby's murder, was said to be "very unpredictable" when held by police.
As a teenager he was victim to a knife attack in which his best friend was killed, and he told psychiatrists that he was haunted by the voices of his would-be killers.
He was discharged from hospital six days after Fusilier Rigby's murder, and was formally charged on May 29, appearing in court for the first time the next day.
There the rare step was taken of allowing him to be handcuffed while in the dock because of the risk to police, prison and security officers.
It emerged that he had attacked three police officers in 24 hours. The first incident was when he was in his cell picking out his stitches, and when a police officer came in to stop him, he punched him in the face with his right hand.
Then when he was interviewed for the first time, he spat in an officer's face; and in a third incident he spat in a glass of water and threw it in a police officer's face.
While in prison he told psychiatrist Dr Neil Boast that he would hear voices in the morning for about 10 minutes.
The medic described: "People he doesn't know and people who took part in an assault on him when he was injured and a friend was killed. He hears people he doesn't know speaking in a Nigerian accent about him."
Experts said he had suffered post-traumatic stress disorder after being a victim of the knife attack at the age of 16. Police said he was "quite a troubled young man" who had gone missing from home more than once.
Former bare-knuckle fighter Lee James was found guilty of murdering 18-year-old Faridon Alizada in 2008 at a flat in Erith, south east London, and wounding Adebowale and another 16-year-old friend.
Adebowale, who was known as Tobi, was the son of Juliet Obasuyi, reportedly a probation officer, and his father Adeniyi, who works for the Nigerian High Commission.
He was raised as a Christian in south east London, and went to school in Kidbrooke. As he moved into his teens, he became involved in drugs and was linked to the Woolwich Boys gang - as was Adebolajo.
His concerned mother appealed for her friend Richard Taylor, the father of tragic Damilola who was killed at the age of 10 in a knife attack, to mentor her son, but he later fell into extremism.
Mr Taylor said that he was "terribly shocked" to see him involved in the brutality, having spoken to him only two months before the murder, but that he felt there was nothing that could have changed the 22-year-old.
In an interview with ITV News, he said: "Having seen how my own son was stabbed to death, it made me feel that...at the end of whatever happens, they will still be alive, they will still be on the street or maybe they will take them away from the public and go and change their faces. They don't deserve to live."
Adebowale, who asked to be called Ismail Ibn Abdullah in court, ultimately chose not to give evidence and refused to explain his horrific actions to the jury or Fusilier Rigby's family.