Then he walked to different spots along the rear doorway and checked the camera each time he did so.

Interesting.

He reversed course and walked down the main hall until he neared the front entrance. Then he veered to the left, down the hall where the cafeteria was located on his left and the library on the right.

This was where Melissa Dalton’s locker was located, directly across from the cafeteria. He looked at the locker. Just behind it was the library where Lancaster was toiling away. On the opposite side, next to the sprinkling of classrooms, was the large cafeteria.

Decker recalled from his school days that there was a storage and prep area at the end of the cafeteria with an exterior door leading to a small concrete porch area where shipments of food would be stacked. So that actually made six doors. Four main ones off the halls, one off the rear loading dock, and one here off the cafeteria.

At 7:28 Melissa Dalton had heard a door open and close. It was not an interior classroom door, because there had been a whooshing sound associated with it, she had said. Like a vacuum closing.

Like a vacuum closing. Those had been Dalton’s words. Lancaster had noted in the statement that Dalton had told her she loved science and the class had just gone over vacuums, which was no doubt why that term was fresh in her mind. Lancaster had put multiple question marks next to this statement, plus a large asterisk. She was no doubt planning to check that out later. Decker couldn’t blame her for marking the statement so. It didn’t seem to make sense.

So that was page two of the statements.

On page ten of the witness statements was a little nugget. It was the counterpart information that had really caused Decker to come here.

The cafeteria workers came in at 8:45 sharp. Not before, not after. That had been verified from multiple sources as being the case yesterday as well. All the cafeteria workers were female. There was simply not a six-two, two-hundred-plus-pound, broad-shouldered male among them.

And since the shooting had started at 8:42, none of the cafeteria workers had actually made it into the school. Four of them were getting out of their cars in the parking lot and another was waiting to turn into the lot when all hell had broken loose.

Decker stepped into the cafeteria and looked around. His hand instinctively went to the butt of his pistol, which was wedged in his waistband and hidden under his jacket. He nudged the safety off with his thumb. He already had a round chambered. The lights were off in here. Decker found the switches and flicked them on using his elbow.

He walked across the main space, passing tables with chairs stacked neatly on top of them. At the end of the room were the serving counters, all stainless steel and glass. The serving tubs were all empty. Everything was clean, dishes stacked neatly, all ready to go except for the absence of any hungry students and folks ready to serve them.

His gaze was roaming to the floor as he stepped. But there wasn’t a discernible footprint there. Decker stepped through the opening into the rear space. There were portable shelving units here used to carry food from this area to the serving area. They were parked against the walls. There were mops and buckets and other cleaning tools.

That was of no interest to Decker.

What was of interest to him was the built-in freezer located at the far end of the storage room.

A whooshing sound. A vacuum. A freezer door closing.

Or opening.

He pulled out his pistol. He wasn’t actually expecting to find the shooter in full cammies inside the freezer. They had to have searched back here and of course opened the freezer. But he had seen enough weird shit in his life not to discount the possibility. And to take anything for granted at this point could mean he too might leave the school in a body bag in the back of a silent transport.

He aimed his pistol at the door, stepped to the side, gripped the handle with his coat sleeve, jerked it upward, and tugged it hard. The door opened cleanly.

With a whoosh, he noted, as the air seal was broken. He imagined in the early morning hours it would have echoed right out into the empty, silent hall and into Melissa Dalton’s ears. Well, this had been his little experiment, and it seemed to corroborate what the girl had said.

Decker backed away and took up position behind a worktable. He edged around it until he could see fully into the freezer. It was empty, except for food. But had it been empty at 7:28 the morning of the rampage?

Decker stepped inside the freezer and looked around. He noted that the door had a safety mechanism that allowed anyone inside to open it. That way one couldn’t become trapped inside and freeze to death.

Then he noticed it. Or felt it, rather.

Freezers were supposed to be really cold, set at zero, in fact. This freezer was merely cold. Maybe not as cold as even the temperature outside.

He checked the temperature gauge. No wonder. It read forty-five. He opened up some of the containers in the freezer and saw what he expected to see. The meat and other perishables had defrosted and were beginning to go bad. They would have to throw them out.

He touched nothing, climbed down, and texted Lancaster. The forensics team would have to come down here and tear this place apart. While he was waiting for them, he walked to the exterior door opening onto the small loading dock.

“Shit.”

It had looked locked, but when he had leaned his bulk against the door it had fallen open, prompting his expletive. He stepped out onto the small loading dock. It was surrounded by a six-foot-tall wooden fence. With his height he could see over. Some garbage cans were located here, as well as a small Dumpster. And wooden crates were stacked in one corner. Decker nudged open the fence gate and peered out.

Two parking spaces, both empty now. Off that, a short strip of cracked asphalt and then a chain-link fence that led to a long row of ten-foot tall bushes and other shrubbery that had grown up right next to the fence. He walked quickly over to the fence. At the spot opposite from the kitchen entrance he pushed his way through the bushes. The chain-link fence here was split right down the middle. He shone his cell phone light over it. Rusted. It had been this way for a while. He continued through the bushes and came out on the other side. Here was a path that led down into the woods that had been next to the school since forever.

Easy come, easy go.