According to wiki:
“Honor killings are argued to have their origin among nomadic peoples and herdsmen: such populations carry all their valuables with them and risk having them stolen, and do not have proper recourse to law. As a result, inspiring fear, using aggression, and cultivating a reputation for violent revenge in order to protect property is preferred to other behaviors. In societies where there is a weak rule of law, people must build fierce reputations.
Indeed, violence related to female sexual expression has been documented since Ancient Rome, when the pater familias had the right to kill an unmarried sexually active daughter or an adulterous wife. In medieval Europe, early Jewish law mandated stoning for an adulterous wife and her partner.
Nighat Taufeeq of the women’s resource center Shirkatgah (Lahore, Pakistan) says: “It is an unholy alliance that works against women: the killers take pride in what they have done, the tribal leaders condone the act and protect the killers and the police connive the cover-up.” The lawyer and human rights activist Hina Jilani says, “The right to life of women in Pakistan is conditional on their obeying social norms and traditions.”
In the Roman Empire the Roman law Lex Julia de adulteriis coercendis implemented by Augustus Caesar permitted the murder of daughters and their lovers who committed adultery at the hands of their fathers and also permitted the murder of the adulterous wife’s lover at the hand of her husband.
The Napoleonic Code did not allow women to murder unfaithful husbands, while it permitted the murder of unfaithful women by their husbands. The Napoleonic Code Article 324 which was passed in 1810 permitted the murders of an unfaithful wife and her lover at the hand of her husband.
As you can see, “honor killings” are not tied to any one religion, but instead are passed down as a cultural norm that then in turns get mixed in with theocracy which allows it to be alright. This is wrong, because this is only a government represented by fallible men and leaders to allow such a thing.
2:44 Do you order righteousness of the people and forget yourselves while you recite the Scripture? Then will you not reason?
It is not isolated to being a “muslim” thing as the news would love to have you think. It is archaic traditions done by men (rarely women cause of lack of sphere of influence) who have never truly understood the word of God and the command to do good on earth. They may be listening to the dark whispers of the great tempter of mankind.
Last Surah of the Quran:
114:1 Say, “I seek refuge in the Lord of mankind,
114:2 The Sovereign of mankind.
114:3 The God of mankind,
114:4 From the evil of the sneaking whisperer,
114:5 Who whispers [evil] into the breasts of mankind –
114:6 From among the jinn and mankind.”
Our only hope is for the younger generation of both men and women, to see the ethical wrongs in such practices and when they come into power to abolish such old barbaric practices done out of circle of Law and Justice given to us by the Quran.