In order to understand this, and if we formulate, in a nutshell, the narrative that arises from the opinion of the witness and the testimony of the arena expert - he maintains that the scene, inside the apartment, indicates a repetitive pattern of holding the deceased against the wall and stabbing him by the defendant's hand, in a sickle-like swinging motion of the knife (or other sharp object) that he was holding. Barkan explains, in the same dynamic between the two, the nature of the defendant's injuries to his hands, which were caused during the course of the incident.
It follows, therefore, that the adoption of the expert's opinion can, from the accuser's point of view, constitute, at most, support for the direct evidence that was brought on its behalf, of the defendant's guilt, and of the correctness of the narrative that was proposed to establish him as reflecting what happened. However, in light of our clear findings, after analyzing the direct testimonies, such corroboration is not significant, for the purpose of the decision, and this is certainly not contingent on the existence or absence of such evidentiary support.
From the point of view of the defense, there is no point in trying to extract from the witness a statement that, in the interaction between the two, at some point, the nature of the physical contact was the opposite - that is, - and to illustrate - that the deceased was the one who pushed and pinned the defendant to the wall. It would not be any wonder, if it turned out that in the struggle for his life, the deceased was able to repel his attacker and slam him against the wall. While such a cross-examination line is "only" futile and unnecessary, a cross-examination line, which attempts to extract from the witness an extreme opposite conclusion - regarding the assault of the defendant by the deceased and an attempt to stab him, completely contradicts his alleged defense and his version, which is entirely - a violent assault on the deceased, and his own - when he came to his defense, which was done by unknown strangers from outside.