Blood Vengeance Evidence

From the (edited) press release of " earliest evidence of blood vengeance" found:

...in a cave in the Jerusalem hills 

Prof. Boaz Zissu, of the Martin (Szusz) Department of Land of Israel Studies and Archaeology at Bar-Ilan University, discovered a human skull and palm bones that have been dated to the 10th-11th centuries CE.
 According to the researchers, "The skull cap shows signs of two traumatic injuries that eventually healed -- evidence of previous violence experienced by the victim -- as well as a small cut-mark caused close to the time of death, and a blow by a sword that caused certain and immediate death...the skull shows a great resemblance to the local Bedouin population...

...in the period under discussion some 1,000 years ago, the Jerusalem hills were inhabited by a Bedouin population that came from Jordan and northern Arabia.
 A text from the beginning of the 20th century tells the story of a case of revenge, during which the murderer presented his family with the skull and right hand of the victim in order to prove the carrying out of a commandment. These are precisely the parts of the body that were discovered in the present case. Since this is a person who was previously involved in violent incidents who then died from the fatal blow, the researchers say it can be concluded that the earliest evidence of blood vengeance has been discovered.

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