http://www.acandyrose.com/05262001delmaranalysis2.htm
[COLOR=#0000000][COLOR=#0000000]"[/COLOR]As it turns out, I do have the background of experience and knowledge that enables me to evaluate this part of the crime scene by definitive criteria. Its not that I go around garroting individuals, but do know the physics involved as well as being long schooled in ropes, knots, handles and that sort of thing. Indeed, these things have been so much a part of my life that evaluation of the garrote scene is almost by mental reflex taking less than a minute. The read is easy as well as loud and clear."
OK,[COLOR=#0000000] I accept his self-r[COLOR=#0000000]e[COLOR=#0000000]ported expertise. I have no reason to doubt him.
[COLOR=#0000000]I am not an expert, but do have a total of [COLOR=#0000000]8[/COLOR] years experience in the [COLOR=#0000000]Navy, and[COLOR=#0000000] Coast Guard.[/COLOR] I think I have enough knowledge to reconstru[COLOR=#0000000]ct the [COLOR=#0000000]knot a[COLOR=#0000000]c[COLOR=#0000000]cording to Mr. England's instructions. [/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR]
[COLOR=#0000000][sniped[COLOR=#0000000]][/COLOR][/COLOR]
"First, let's look at the cord around the neck and the knot. Having only a single-angle picture to look at, I can't say with certainty exactly how the knot was formed, so this is a little iffy, but not much. From what I do see and don't see, I think my conclusions are fundamentally correct."
[COLOR=#0000000]OK[/COLOR]
"One end of a rather long cord is passed under the throat and around the neck. This end is then passed over and under the other part of the cord after it encircles the neck. It is then passed over and under itself, then over once more and through the space created by the first over and under; then pulled tight to close the knot and leave a small compressed slip loop created by the action."
[COLOR=#0000000]I followed this very closely, doin[COLOR=#0000000]g it several times, [/COLOR]using a chair arm in place of the throat. [/COLOR]
"Aside from the fact that this version of a garrote is inherently grossly inefficient compared to some other versions, the first structural inefficiency to notice is the knot arrangement that compresses against the cord. This causes friction reducing the free travel of the cord to reduce the loop for the purpose of strangulation. This is especially true of a small cord easily compressed, and difficult to release. (This is hardly suitable to the perverted sexual activity, not explained, but apparently imagined by Smit.)"
[COLOR=#0000000]Agreed, it does not function well for EA purposes if it is suppose[COLOR=#0000000]d to release easily. [/COLOR][/COLOR]
"The coroners' report states: "A deep ligature furrow encircles the entire neck." This is in contradiction with what I see in the picture. This encircling furrow cannot happen with the arrangement shown in the picture. "
[COLOR=#0000000]Quite the opposite. Mr[COLOR=#0000000]. England [COLOR=#0000000]has already informed us that the[COLOR=#0000000] knot does[COLOR=#0000000]n't release [COLOR=#0000000]easily, and in testing it, I found that it coul[COLOR=#0000000]d be pulled with one hand while the other hand was over the knot and it would tighten up over a hard chair arm. I [COLOR=#0000000]tested it on my wri[COLOR=#0000000]st tying one end to a clea[COLOR=#0000000]t and pulling my wrist[COLOR=#0000000] with my[COLOR=#0000000] free hand over the knot. On soft tissue this made a cir[COLOR=#0000000]cumferential furrow. Because I pulled snug, r[COLOR=#0000000]ather th[COLOR=#0000000]an tight, it was no[COLOR=#0000000]where near as deeep as the furrow on JB's neck. This part of my test pr[COLOR=#0000000]o[COLOR=#0000000]ved a bit foolish, as [COLOR=#0000000]I th[COLOR=#0000000]en had to untie the knot with one hand. Luckily I managed to get it off[COLOR=#0000000]. [/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR]
"Although it is possible to strangle someone with this apparatus, it will leave tell tell marks far different from those described by the coroner.[COLOR=#0000000]" ...
[/COLOR][COLOR=#0000000][COLOR=#0000000]Ac[COLOR=#0000000]tually it leaves exactly the marks described. [/COLOR][/COLOR]
[/COLOR]
[COLOR=#0000000]
[/COLOR]..."Pulling on the long cord leading away from the neck will apply the heaviest pressure farthest away from the point of the pull, to the front of the throat." ...
[COLOR=#0000000]Agreed. [/COLOR]
[COLOR=#0000000]
..." [/COLOR]This force cannot apply circumference pressure to cause the encircling ligature furrow described by the coroner. Even if the slip feature is held and pushed as the cord is pulled, it will still tend to lift away with the degrees of pressure graduated from front to back with the least at the point of the knot."
[COLOR=#0000000][COLOR=#0000000]No. Just the opposite. [COLOR=#0000000]If the slip knot is h[COLOR=#0000000]el[COLOR=#0000000]d and pushed a[COLOR=#0000000]s the other end is pulled, it constricts, and does not [COLOR=#0000000]release at all. One would have to push the knot hard to make a deep f[COLOR=#0000000]urrow, but once in place, it holds fast and would make exactly th[COLOR=#0000000]e ma[COLOR=#0000000]r[COLOR=#0000000]ks we see in the autopsy photos. [/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR]
"(By all means, set up something of reasonable equivalence and test for yourself.)"
Being off from work today, I did just exactly that, and found it could make a deep ligature furrow, and hold it indefinitely.
I was using 1/4" nylon line.
I agree with Mr. England that the "garrotte" was not twisted with a stick. I also agree that the somewhat decorative knot that holds the paintbrush/handle is unnecessary and less efficient than a simple slip knot would be. I suspect this was intended to make it look "intricate".
[COLOR=#0000000]"If after the cord was put around the neck, dividing the cord into right and left parts, one part in each hand, the two parts brought across each other and pulled hard while pressing downward on the neck would apply a circumference pressure to account for the encircling ligature furrow.[COLOR=#0000000]"
[/COLOR][COLOR=#0000000][COLOR=#0000000]Yes i[COLOR=#0000000]t would, but the "garrotte" as we see it in the phot[COLOR=#0000000]os also accounts for it. [/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][COLOR=#0000000]
[/COLOR]"The knot was made AFTER the pressure was applied[COLOR=#0000000]and after the ligature furrow created.[/COLOR][COLOR=#0000000][COLOR=#0000000]
[/COLOR][COLOR=#0000000][COLOR=#0000000]Not necessarily. This is possible, but the "garrotte" as we see it in the photos would also do this. [/COLOR][/COLOR][COLOR=#0000000]
"[/COLOR]The cord was held tightly and close as the knot was made; which is why and how hair got entangled in the knot.[/COLOR]"
Could be that it was made after putting it around the neck, but it is not at all necessary that it be done this way to form the ligature furrow. It does help explain the hair in the knot.
By all means, try this at home, following Mr. England's instructions. Be careful. Don't use it on your neck (-:
(Update, if you try it, put the "garrotte" around the middle of your forearm. Pulling snug, then pulling it off, you should see, just for a few moments, a white circle around your arm. The white mark will be there, even under the knot. If you use natural fiber rope, be very careful, as it is much less slippery than nylon and will be very hard to loosen up)
The reason I questioned this analysis in the first place is because it does not function well as an EA device, given that it does not loosen easily. Since it doesn't loosen easily, I wondered why it couldn't make the deep ligature furrow in Mr. England's estimation. My own tests show that it could make the ligature furrow. Once it's tightened, it stays that way by itself.
I would agree that maybe, just exactly under the knot, there might be less pressure, and therefore the furrow would not be as deep, but the furrow will still be there, and nearly as deep as the rest of the furrow.
I must also add that I did not use the exact line that the killer used, so my test really only shows that the furrow could be made, with that knot, and the type of line I used. It might be that the line actually used is slipperier and the know will not hold. In that case, it serves moderately well as an EA device.