As someone here has been saying for years the TMB test being negative doesn't mean that the footprints weren't left in very diluted blood. The blood at the 1:1,000,000 ratio could have been left there months or even longer. Since the footprints don't match Amanda, they are only compatible, and DNA can't be dated, the prints are of very little value. In that the substance wasn't determined to be blood with any confirming test nor was the substance positively tested for MK's DNA it is not precise.
[Such a circumstance] acquires probative value only when multiple pieces of evidence can all be traced to a single cause or a single effect. In applying this, therefore, the judge must first examine each item of evidence [indizio], identifying all its possible logical connections, then ascertaining their gravity, which is inversely proportional to the number of such connections, as well as the precision, which is correlated to the sharpness of [the item's] contours, the clarity of its representation, to the direct or indirect source of knowledge from which it derives, [and thus] to its reliability. [The judge] must, finally, proceed to the final synthesis, ascertaining whether the items under examination are consistent [concordanti], i.e. whether they can be linked to a single cause or a single effect, so that the existence or nonexistence of the fact to be proved can be inferred.
Glad it has been settled that TMB is not as sensitive as Luminol.
