Last Saturday a young woman named Hatun Tash was attacked with a knife and slashed in the face by an as yet unidentified assailant at Speakers’ Corner in London. Ms. Tash is a former Muslim and convert to Christianity who regularly preaches the gospel to Muslims in Hyde Park. She was wearing a Charlie Hebdo t-shirt at the time of the attack.
As of this writing, her attacker has not been named, so there is as yet no Mohammed Coefficient for the incident, nor can we be certain that the assailant was a Muslim.
However, the knifeman was clearly attempting to cut her in the neck, and one may assume that he intended to slit her throat in the same manner as a beast is slaughtered at the festival of Eid Al-Adha. That act would have been followed by full beheading, if he were allowed to complete the task, because such is the punishment for kufr, or unbelief.
See this Breitbart article for a general account of what happened at Speakers’ Corner.
In the following video, David Wood of Acts 17 Apologetics shows several clips with footage of the attack on Ms. Tash, and then explains its scriptural justification as found in the Koran, the Hadith, and the Sira:
Hatun Tash actually committed at least two “crimes” that carry the death penalty under Islamic law: apostasy and insulting the prophet.
The book ’Umdat al-salik wa ’uddat al-nasik, or The reliance of the traveller and tools of the worshipper is commonly referred to as Reliance of the Traveller when cited in English. This is an authoritative source on Sunni Islamic law, because it is certified as such by Al-Azhar University in Cairo. There is no higher authority on Sunni Islamic doctrine than Al-Azhar; it is the closest equivalent to the Vatican that can be found in Islam.
From Book O, “Justice”, we learn that:
Leaving Islam is the ugliest form of unbelief and the worst. [o8.0]
Whoever voluntarily leaves Islam is killed.
When a person who has reached puberty and is sane voluntarily apostatizes from Islam, he deserves to be killed. [o8.1]
The second capital count against Hatun Tash was defamation against Islam, also know as Islamic slander, or ghiba. It is considered an act of apostasy.
Consulting Book O, “Justice”, in Reliance of the Traveller, we learn that the following acts constitute leaving Islam (§o8.7):