find the patterns here, and Shelley would know how to read emotions and lies there. Zoe had to give her that.
So, she had agreed, and given only the pretense of being in charge. It was only Shelley’s warm nature—and Zoe’s overall lack of care for the command structure’s correct adherence, so long as the case was solved—that made it feel all right. Shelley had even seemed almost apologetic, so keen to show that she knew the ropes that she was overstepping her bounds by accident.
She hesitated at the door of the gas station, knowing things must have started there. There were faint marks left on the ground, footprints marked by small flags and plastic triangles. The woman—the older woman with sensible shoes and a short stride—had led the way. This gas station was so isolated that she couldn’t have had more than a few customers that day, and the marks were clear of any confusion only a few paces away from the door.
The woman had been followed, though perhaps she had not known it. The numbers appeared before Zoe’s eyes, telling her everything she needed to know: the distance between them indicated an unhurried stride. There were no other footsteps to indicate whether the perpetrator had come from inside the gas station or somewhere in the parking lot. The woman had walked calmly, at a steady pace, toward the corner. There was a mess here, but Zoe passed it, seeing the steps continuing and knowing she would be back again eventually.
First, the footsteps continued at a slightly faster pace. Was the woman aware now that she was followed?
Here—right by a few scattered pieces of candy that littered the ground, perhaps from a botched delivery or a clumsy child—they had stopped. The woman had turned to look at the man, before spinning on her heel and rushing onward toward a door at the back of the building.
There was a key still hanging from the lock, swinging slightly every now and then in the breeze. The ground was slightly scuffed here, where the victim had stopped to turn it in the lock and then hurried away.
Her retreating steps showed a much longer stride, a quicker pace. She had been almost running, trying to get away and back to the store she tended. Was she afraid? Cold in the dark? Just wanting to get back to her desk?
The man had followed her. Not immediately; there was an indentation here, a scuff of raised dirt at the edge of a heel print where he had slowly turned to watch her. Then he had loped after her with what was likely an easy, light gait, directly approaching her, cutting inside her path to reach her at the corner.
Ah, the mess again. Zoe squatted on her heels, examining it closer. The ground was more profoundly disturbed here, scuff marks clearly visible where the victim had kicked for purchase for perhaps a few seconds or less. More noticeable was the heavier imprint of the man’s shoes here, where he must have taken some of her weight on the garrote.
The body had already been taken away, but the blood spoke for itself.
It must have been fast; she would not have struggled for long.
Zoe peered down for a closer look at the footprints she had seen, those of the male culprit. What was interesting was their appearance. While she could make out a faint pattern in the marks left by the victim—enough to give an idea of brand and the comfortable style of shoe—his footprints were a vague outline only, an impression of a heel for the most part.
Zoe retraced her steps, checking as she went. There were only two places where she could make out his steps: near the door, where he had waited, and here, at the moment of death. In both cases, all identifying marks—including the length and width of the shoe—had been erased.
In other words, he had cleaned up after himself.
“There was no physical evidence left other than the body?” Zoe asked the guard, who had not yet moved from his position by the door.
He had his thumbs hooked in his belt loops, his eyes squinting up and down the road in either direction. “No, ma’am,” he said.
“No hair follicles? Tire tracks?”
“Nothing that we can pinpoint to a perpetrator. Looks like all of the tire tracks in the parking lot were erased, not just his.”
Zoe chewed her lip, thinking. He might have been choosing his victims at random, but he was far from being a crazed madman. Just like Shelley had said—he was in control. More than that, he was patient and meticulous. Even killers who planned their attacks weren’t usually this good.
Zoe’s ringtone blazed out across the quiet of the empty road, making the guard jump in his boots. “Special Agent Prime,” she answered automatically, without even checking the caller display.
“Z, I’ve got a lead. Abusive ex-husband,” Shelley said. No standing on ceremony for her. Her tone was rushed, excited. That thrill of the first hint. “Looks like the divorce was just being finalized. You want to come pick me up and check it out?”
“Not much to see here,” Zoe replied. There was no sense in both of them walking the scene, if there were other leads to be followed. Besides, she got the feeling that Shelley very much did not want to see the place where a woman had lost her life. She was still a little green in many ways. “I will be with you in twenty minutes.”
“So, where were you last night?” Shelley pressed, leaning in to make the guy feel as though it was their little secret.
“I was at a bar,” he grunted. “Lucky’s, over on the east side of town.”
Zoe was listening, but only just. She had known from the moment they walked in that this was not their murderer. The ex-husband might have liked to throw his weight around when they were married, but that was exactly the problem: his weight. He was at least a hundred pounds too heavy to have left those imprints, and too short, besides. He had the height to take out his wife—a smaller woman who had no doubt been subjected to his fists many times over—but not the tallest victim. He was five foot seven, six and three-quarters at a better guess. It would have been too much of a reach.
“Can anyone verify you were there?” Shelley asked.
Zoe wanted to stop her, prevent any more wasted time. But she didn’t say a thing. She didn’t want to try to explain something that was as obvious to her as the sky being blue.
“I was passed out,” he said, throwing his hand in the air in a gesture of frustration. “Check the cameras. Ask the bartender. He kicked me out well after midnight.”
“The bartender has a name?” Zoe asked, flipping out a pad to make a note. At least it would be something they could easily verify. She noted down what he told her.
“When did you last see your ex-wife?” Shelley asked.
He shrugged, his eyes moving sideways as he thought. “I don’t know. Bitch was always getting in my way. Guess a few months ago. She was getting all het up about alimony. I missed a few payments.”
Shelley visibly bristled at the way he spoke. There were some emotions that Zoe found hard to read, elusive things that didn’t quite have names or that came from sources she couldn’t identify with. But anger was easy. Anger might as well have been a red flashing sign, and it was going off over Shelley’s head at that moment.
“Do you consider all women to be inconveniences, or just the ones who divorced you after a violent assault?”
The man’s eyes practically bulged out of his head. “Hey, look, you can’t—”
Shelley interrupted him before
