iamshadow21
Amateur Forensics Geek
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If he had, in my opinion LE would have known this due to a) asking him where he'd been in the house and what he'd done and b) taking his shoes for the process of elimination.Excuse me if I'm wrong or missed something, but didn't Ethin's twin enter the house? He arrived before police? and went in to check ? Maybe he left a shoe-print prior to realizing the severity of the situation? jmo imoo
Any prints in blood he left would have been in blood that was clotted, separated (red cells from serum/plasma), and in the process of drying. This would be obviously different to investigators from prints left in fresh blood, presumably by the perpetrator.
Blood goes through a known and measurable series of changes after it is shed. I posted a link to a scientific article about pooled blood further up the thread. Here's one about drying times of smaller amounts of blood. Both articles I have linked today used hard surfaces - the Moscow house was floored throughout in modern lino.
Drying properties of bloodstains on common indoor surfaces
MOO