As for the drug found in the deceased's blood, the witness replied that it was a single type of drug, and a derivative of it, as a result of metabolism. He confirmed to the defense attorney that the drug was cocaine, and that its derivatives - benzoid and angonin - were found in bodily fluids, because the drug had undergone a process of breaking down substances in the body. As for the drug's effect on bleeding, he replied that the drug cocaine, and this is also true of adrenaline, causes constriction of blood vessels, and generally reduces bleeding in them, at a stage when the various amines are effective (p. 597, paras. 9-12). According to him, cocaine can also raise blood pressure, as a result of the contraction of peripheral blood vessels, and increase the heart rate, and as a result, bleeding may increase. In the case before us, the witness believes that there was no heart rhythm disorder as a result of the cocaine, because when MDA arrived at the deceased, he had a weak pulse. On the other hand, in relatively superficial stabbings, which reach cutaneous blood vessels, the cocaine will cause the blood vessels to constrict and reduce bleeding. In our context, the witness is of the opinion that the effect of cocaine is not significant, one way or the other (i.e., it did not aggravate the situation or improve it. p. 598, paras. 1-9).
With regard to the cut wounds found in the hands of the deceased, the witness confirmed to the defense that these were residents with defensive wounds, as stated at the beginning of page 13 of the affidavit, as well as wounds caused during a struggle for control of a sharp object. He confirmed that he did not examine the defendant's hands, and that he had no explanation as to how the cuts were caused in his hands. He did not rule out that at a certain point, the knife was in the hands of the deceased.
Referring to the blunt and significant head injury that was found in the deceased's head - below the meninges, the witness replied that it could be the result of a blow to the head on a surface, a direct blow to the head or a fall. The mechanism of causation is not unequivocal. The witness further confirmed that at the time of the hearing, he estimated that the wounds on the deceased's body, neck and right arm could have been caused by being dragged on the floor or on a road. The witness notes that these are abrasion wounds, and he does not rule out that they may have been caused by the medical staff that treated the deceased.