I have already gone through the blood. With respect to DNA, the fact that Conti and Vecchiotti did not find more DNA in exactly the same spot is not in question, nor is it the issue (both results may be true). The issue is whether or not the DNA profile that Stefanoni culled in her extraction of the knife convincing ties the knife to the crime. Secondary/tertiary DNA transfer is well documented. If one doesn't believe that DNA contamination exists, it might be worth his or her time to talk to Farah Jama, Russell Gesah, Lukis Anderson, or Gregory Turner before forming a final opinion. Low template samples only raise the odds of contamination; that is why legitimate forensics in this range uses a dedicated facility and a
reworked process of handling the evidence. Stefanoni's lab was not even certified for standard profiling. It is bewildering how a knife that doesn't match some of the wounds, doesn't match the bloody outline of a knife, and has no blood even according to Stefanoni can still be considered a possible murder weapon.