Some of those people were edgy, suspicious. Some were raggedly hostile.

As always, Dance deferred responding, saying it was an ongoing investigation. This group – the survivors and relatives, rather than the merely curious, at least – seemed aggressively dissatisfied with her words. One blonde, bandaged on the face, said her fiancé was in critical care. ‘You know where he got injured? His balls. Somebody trampled him, trying to get out. They’re saying we may never have kids now!’

Dance offered genuine sympathy and asked her few questions. The woman was in no mood to answer.

She spotted a couple of men in suits circulating, one white, one Latino, each chatting away with people from their respective language pools, handing out business cards. Nothing she could do about it. First Amendment – if that was the law that protected the right of scummy lawyers to solicit clients. A glare to the chubby white man, dusty suit, was returned with a slick smile. As if he’d given her the finger.

Everything that those who’d returned here told her echoed what she’d learned from Holly and Cohen. It was the same story from different angles, the constant being how shockingly fast a group of relaxed folks in a concert snapped and turned into wild animals, their minds possessed by panic.

She examined the oil drum where the fire had started. It was about twenty feet from the back of the roadhouse, near the air-conditioning unit. Inside, as Holly had described, were ash and bits of half-burned trash.

Dance then turned to what would be the crux of the county’s investigation: the truck blocking the doors. The cab was a red Peterbilt, an older model, battered and decorated with bug dots, white and yellow and green. The trailer it hauled was about thirty feet long and, with the tractor, it effectively blocked all three emergency-exit doors. The right front fender rested an inch from the wall of the Solitude Creek club; the rear right end of the trailer was about ten inches away. The angle allowed two exit doors to open a bit but not enough for anyone to get out. On the ground beside one door Dance could see smears of blood. Perhaps that was where the pretty girl’s arm had been sheared off.

She tried to get an idea of how the truck had ended up there. The club and the warehouse shared a parking lot, though signs clearly marked which areas were for patrons of Solitude Creek and which for the trucks and employees of Henderson Jobbing. Red signs warned about ‘towing at owner’s expense’ but seemed a lethargic threat, so faded and rusty were they.

No, it didn’t make any sense for the driver to leave the truck there. The portion of the parking space where the tractors and trailers rested was half full; there was plenty of room for the driver to park the rig anywhere in that area. Why here?

More likely the vehicle had rolled and come to rest where it had; the warehouse, to the south of the club, was a higher elevation and the lot sloped downward to here, where it leveled out. The heavy truck had got as far as the side wall and slowed to a stop.

Dance walked to the warehouse now, a hundred feet away, where the office door was marked with a handmade sign: ‘Closed’. The people she’d seen moments ago were now gone.

She gripped the knob and pulled. Locked – though lights were visible inside through a tear in a window shade, and she could see movement.

A loud rap on the glass. ‘Bureau of Investigation. Please open the door.’

Nothing.

Another rap, harder.

The shade moved aside; a middle-aged man, unruly brown hair, glared at her. His eyes scanned her ID and he let her in.

The lobby was what one would expect of a mid-size transport company squatting off a secondary highway. Scuffed, functional, filled with Sears and Office Depot furniture, black and chrome and gray. Scheduling boards, posted government regulations. Lots of paper. The smell of diesel fumes or grease was prominent.

Dance introduced herself. The man, Henderson, was the owner. A woman, who appeared to be an assistant or secretary, and two other men, in work clothing, gazed at her uneasily. Bob Holly had said the truck’s driver was coming in: was he one of these men?

She asked but was told, no, Billy hadn’t arrived yet. She then asked if the warehouse had been open at the time of the incident.

The owner said quickly, ‘We have rules. You can see them there.’

A sign on the wall nearby reminded, with the inexplicable capitalization of corporate culture:

Remember your Passports for International trips!

The sign he was referring to was beneath it:

Set your Brake and leave your Rig in gear!

Interrogators are always alert to subjects answering questions they haven’t been asked. Nothing illustrates what’s been going on in their minds better than that.

She’d get to the matter of brakes and gears in a moment. ‘Yessir, but about the hours?’

‘We close at five. We’re open seven to five.’

‘But trucks arrive later, right? Sometimes?’

‘That rig came in at seven.’ He looked at a sheet of paper – which of course he’d found and memorized the minute he’d heard about the tragedy. ‘Seven ten. Empty from Fresno.’

‘And the driver parked in a usual space?’

‘Any space that’s free,’ the worker piped up. ‘The top of the hill.’ He bore a resemblance to Henderson. Nephew, son, Dance guessed. Noting he’d mentioned the incline. They’d already discussed scapegoating the driver and had planned his public crucifixion.

‘Would the driver have parked the truck there intentionally, beside the club?’ Dance asked.

This caught them off guard. ‘Well, no. That wouldn’t make sense.’ The hesitation told her that they wished they’d thought about this scenario. But they’d already decided to sell the driver out by implying he hadn’t set the brake.

The top of the hill …

The third man, brawny, soiled hands, realized his cue. ‘These rigs’re heavy. But they’ll roll.’

Dance asked, ‘Where was it parked before it ended up beside the club?’

‘One of the spots,’ Henderson Lite offered.

‘Gathered that. Which one?’

‘Do I need a lawyer?’ the owner asked.

‘I’m just trying to find out what happened. This isn’t a criminal investigation.’ And she added, as she knew she should: ‘At this point.’

‘Do I have to talk to you?’ Henderson asked the tax- and insurance-certification lady.

She said evenly, as if concerned for him, ‘It will be a lot better for you if you cooperate.’

Henderson gave a calculated shrug and directed her outside, then pointed to the spot that was, not surprisingly, directly uphill from the club. The truck seemed to have rolled in almost a straight line to where it rested. A slight bevel of the asphalt would have accounted for the vehicle’s angle with respect to the building: it had veered slightly to the left.

Henderson: ‘So we don’t know what happened.’

Meaning: Take the driver. Fuck him. It’s his fault, not ours. We posted the rules.

Dance looked around. ‘How does it work? A driver comes in after hours, he leaves the key somewhere here or he keeps it?’

‘Leaves it.’ Henderson pointed. A drop-box.

A white pickup pulled into the lot and approached them and squealed to a stop nearby. A slim man of about thirty-five, jeans and an AC/DC T-shirt stepped out of it. He pulled on a leather jacket, straightened his slicked-back blond hair, fringy at the ends. His face was etched with parentheses around his mouth, his brow permanently furrowed. He was white but his skin was leather-tanned.

‘Well,’ Henderson said, ‘here he is now.’

The sheepish man stepped up to his boss. ‘Mr Henderson.’

‘Billy,’ the owner said. ‘This’s …’

‘I’m Kathryn Dance, CBI.’ Her ID rose.

‘Billy Culp,’ the young man said absently, staring at her ID. Eyes wide, perhaps seeing an opening door to a jail cell.