Dr. Loy found four DNA samples from Otzi's blood. The theory talks a little prequel to his death, a sequence of events that could have happened before Otzi's struggling death. DNA samples done on Otzi man revealed blood traces of four other people,
* One from his knife
* Two from the same arrowhead
* And a fourth from his coat
The events are understood as Otziwas able to kill two of his rivals with the same arrowhead pulling it successfully out each time. The blood on his coat, should have been his wounded pal whom he had been carrying in this fuss.
Latest studies reveal the cause of his death was not just by blood loss due to the arrow head, but he had received a hard blow from the back of his head. The blow could have been due to a fall or someone hit him hard from behind.