BLEEDING RATE AT BUNDY

Hank Goldberg's, "The Prosecution Responds" is valuable for containing the graphic images of the prosecution exhibits of the detail of Nicole's front yard, and the Bodziak chart of the footprints and blood drops in the five drop trail. The Bodiziak chart also contains the interior floor plan for the first floor of the condo, and is to scale. From these charts it is possible to make a number of determinations, e.g., the distance from the intercom to the front door, from the front door to the corner of the building, from the corner to the foot of the steps, etc. I will deal with these in a subsequent article, but here I am interested in the spacing of the drops in the five drop trail.

The only place on the right-hand glove where Simpson's blood was reported to have been found was at the wrist notch. Because Simpson's left hand was bleeding, and the wrist notch is the natural place from which to carry a bloody glove so as to minimize the amount of blood one gets on himself (Simpson was a fastidious man) it is indicated that Simpson carried the glove in his left hand as he went down the back walk. A glove carried in that way would be directly beneath the wound to Simpson's knuckle, and would be subject to a certain amount of swinging. Because of this, it would be expected that some drops would fall on the glove, and other drops would miss the glove, and fall directly on the ground. This is seen: Simpson's blood occurs both on drops on the ground, and on the glove.

If Simpson traveled at a uniform rate over the course (from the footprint indications this is approximately, but not exactly, true) and if the bleeding rate were constant, we would expect a blood drop to be shed once in every D feet traveled. The distance between blood drops on the ground would be D x N, where N is a small integer to account for intermediate drops that were caught by the glove. For example, if two successive drops hit the ground, the distance between them would be D. If one hit the ground, the next was caught by the glove, and the one after that hit the ground, the distance between those two on the ground would be 2D (i.e., N = 2.)

According to the prosecution exhibit, the actual distance between drops (rounded to the nearest foot) and the computed values of N are:

COMPUTED
Between 1st and 2nd drops: 11 feet (N=1) 11
Between 2nd and 3rd drops: 25 feet (N=2) 22
Between 3rd and 4th drops: 45 feet (N=4) 44
Between 4th and 5th drops: 33 feet (N=3) 33

Also shown in the table is the "COMPUTED" distance based on the model. The difference between the computed and the actual spacing between drops on the ground is 0 ft, 3 ft, 1 ft, and 0 ft., giving an excellent agreement between the model and observation, tending to confirm the model.

From this, there were a total of 11 drops shed, of which five fell on the ground, and six fell on the glove. There is not an excess number of drops in the vicinity of the back gate -- or at any other place along the trail -- that would indicate that Simpson loitered during his exit. (The blood shedding interval, D, is seen to be 11 feet.)

Dick Wagner • Van Nuys, CA (8/10/98) NG 360

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