that blood splatter served as a gruesome canvass with roc written over it. when the letters roc was over top of it. it scribbled over it and didn t disrupt it at all. here was her specialization, roc must have been written after they dried, how long after? i have a special machine i used to make some spatter. in her lab, she used animal blood to test how long for spatter to dry on a similar surface. when i came back and was able to apply spatter to some sections of some cardboard, i was able to get some blood and writing the word roc. i must have written it a million times over different areas of spatter. in the lab it took at least 25 minutes of drying time before the forensic specialist could write without smearing the spatter. she concluded there must have been about that much time between the attack on karen and the word roc being written on the wall. next, she looked for
fingerprints in the letters, themselves, sounds impossible, right? if she s writing and applying pressure to the wall, you would think there would be some type of transfer of ridge detail. ridge detail. we all have it. unique telltale patterns on every human finger and hand. but anna wasn t finding that here. rather she detected an unusual hint of a pattern. something almost like polka dots. i thought to myself the garden glove on the counter was missing its match, missing its pair. reporter: a garden glove was found and the mate was never located. it had a distinctive dot pattern. on the interior side where the palmetto and the fingers were, it s like that rubber and it s got those little. bubbly surface. knobbing grippy surface. i remember thinking, wow, i wonder if that s what wrote these letters.
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