Let's pull this back to reality: no Arabs are involved. At all.
The victims are ethnic Turks; since this is described as a 'blood feud', and not terrorism (implied to be Kurdish separatist terrorism), and some of those arrested have the same family name, the suspects are Turks too.
Dozens killed in 'blood feud' gun attack on Turkish party
The Turkish interior minister, Besir Atalay, said the most likely cause of the attack was a feud between families.
"Evidence so far shows it was not the work of a terrorist group," he said when asked whether the militant Kurdistan Workers party (PKK) could have been responsible.
Eight suspects had been detained, Atalay said. Most of them shared the same family name as many of the dead, bolstering suggestions that the attack had been driven by an intra-clan vendetta.
A local official told Turkey's Haberturk TV channel that the killings had arisen from an old feud in a pro-government militia that included the families of the prospective bride – the daughter of the village muhtar, or chief – and groom.
One of the families had reportedly opposed the marriage. The muhtar, Hamit Celebi, was killed along with 10 of his relatives, the state-run Anatolian news agency reported.
http://www.guardian.co.uk/world/2009/may/05/turkey-wedding-reception-gunmenSo, references to 'al-' this and 'bin that' are all wrong. Please, get some knowledge of foreign countries before you make snide comments about them (this is not aimed at the OP, by the way).