The Likeness

“She might not even have known,” I said. “If her cycle wasn’t regular-”

"Ah, Jaysus, Maddox,” said O’Kelly, horrified. “We don’t want to hear about that carry-on. Put it in a report or something.”

"Any chance of IDing the father through DNA?” Sam asked.

“I see no reason why not,” Cooper said, “given a sample from the putative father. The embryo was approximately four weeks old and just under half a centimeter long, and was-”

"Christ,” said O’Kelly; Cooper smirked. “Skip the bloody details and get on with it. How’d she die?”

Cooper left a loud pause, to show everyone that he wasn’t taking orders from O’Kelly. “At some point on Wednesday night,” he said, when he figured his point was made, “she suffered a single stab wound to the right chest. The probability is that the attack came from the front: the angle and point of entry would be difficult to achieve from behind the victim. I found slight abrasions to both palms and one knee, consistent with a fall on hard ground, but no defensive wounds. The weapon was a blade at least three inches long, with a single edge, a sharp point and no distinctive features-it could have been any large pocketknife, even a sharp kitchen knife. This blade entered on the midclavicular line at the level of the eighth rib, at an upward angle, and nicked the lung, leading to a tension pneumothorax. To put it as simply as possible”-he threw O’Kelly a snide sidelong glance-“the blade created a flap valve in the lung. Each time she inhaled, air escaped from the lung into the pleural space; when she exhaled, the flap closed, leaving the air trapped. Prompt medical attention could almost certainly have saved her. In the absence of such attention, however, the air gradually accumulated, compressing the other thoracic organs within the chest cavity. Eventually the heart was no longer able to fill with blood, and she died.”

There was a tiny silence, only the soft hum of the fluorescents. I thought of her in that cold ruined house, with night birds keening above her and rain gentle all around, dying of breathing.

“How long would that have taken?” Frank asked.

“The progression would depend on a variety of factors,” Cooper said. “If, for example, the victim ran for any distance after being stabbed, her breathing would have accelerated and deepened, hastening the development of the tension pneumothorax. The blade also left a minute nick in one of the major veins of the chest; with activity, this nick grew into a tear, and she would gradually have begun to bleed quite heavily. To give a tentative estimate, I would guess that she became unconscious approximately twenty to thirty minutes after receiving the injury, and died perhaps ten or fifteen minutes later.”

“In that half hour,” Sam asked, “how far could she have got?”

“I am not a medium, Detective,” Cooper said sweetly. “Adrenaline can have fascinating effects on the human body, and there is evidence that the victim was in fact in a state of considerable emotion. The presence of cadaveric spasm-in this case, the hands contracting into fists at the moment of death and remaining clenched through rigor mortis-is generally associated with extreme emotional stress. If she was sufficiently motivated, which under the circumstances I would imagine she was, a mile or so would not be out of the question. Alternatively, of course, she could have collapsed within yards.”

“OK,” Sam said. He found a highlighter pen on someone’s desk and drew a wide circle around the cottage on the map, taking in the village and Whitethorn House and acres of empty hillside. “So our primary crime scene could be anywhere in here.”

“Wouldn’t she have been in too much pain to get far?” I asked. I felt Frank’s eyes flick to me. We don’t ask whether victims suffered. Unless they were actually tortured, we don’t need to know: getting emotionally involved does nothing except wreck your objectivity and give you nightmares, and we’re going to tell the family it was painless anyway.

“Restrain your imagination, Detective Maddox,” Cooper told me. “A tension pneumothorax is often relatively painless. She would have been aware of mounting shortness of breath and an increased heart rate; as shock set in, her skin would have become cold and clammy and she would have felt light-headed, but there is no reason to suppose that she was in excruciating agony.”

“How much force went into the stabbing?” Sam asked. “Could anyone have done it, or would it take a big strong fella?”

Cooper sighed. We always ask: could a scrawny guy have done it? What about a woman? A kid? How big a kid? “The shape of the wound on cross section, ” he said, “combined with the lack of splitting in the skin at the entry point, implies a blade with a fairly sharp tip. It did not encounter bone or cartilage at any point. Assuming a fairly swift lunge, I would say that this injury could have been inflicted by a large man, a small man, a large woman, a small woman, or a strong pubescent child. Does that answer your question?”