Al was just spitting on his palms to pick the thing up and put it on the trolley when Isaint warned him off and started his hocus pocus.
It gave him a moment to light a cigarette and take in the grisly scene. Away from the dense concentration of dust in the ducts, he didn't see any danger in going off his internal air - whatever the hell was down here, these men's hazmat suits hadn't helped them, so his little cyber gizmo wasn't going to be much use.
"Well, here's what I reckon - whatever done transpired here, it were quick an' it were balls out terrifyin'. Rational men locked ferever inna vault might eventually decide ta eat a bullet, but they don't waste they last hours scratchin' at a door like that with they fingernails. They were desperate beyond thinkin' ta git out, and do it lickety split. Hell, if they'd been stuck in here any length o' time, they'd o' stripped out that hot MOP gear afore long. But since I ain't exactly eager fer my coworkers ta face the same fate, couldn't hurt ta learn more."
He bent down to look at the fingertips of the men by the door - the more wear and tear on the gloves, the longer they would have been clawing at it. Then he stood up and started looking at the ground - if no one had been in here all this time, any sign should be well preserved. He quickly found indications of the men having entered. He next looked to see if he could tell whether anyone had left - sure, they could have been double-crossed, but he wasn't ruling out the possibility that something inside the room had pulled the door shut on them. With that thought, he also looked at the lock to see if it would automatically activate on the door being shut.