The presence of touch DNA on the knife sheath button raises defense arguments, suggesting it could be from incidental contact rather than a violent act, especially if the DNA is old or transferable. The prosecution may counter that the absence of other DNA or mixtures implies the suspect handled it without gloves, while the defense might argue the sheath was planted or wiped down.

Impact: Medium. This forensic detail opens avenues for defense strategies, emphasizing the need for corroborating evidence beyond DNA to establish guilt, as the interpretation of trace DNA can be complex and contested.

In the source video, this keypoint occurs from 00:42:46 to 00:45:24.

Sources in support: Megyn Kelly (Host)