For a second I think Breslin’s gonna tell me to stick my scut work, but he says, ‘Why not,’ although there’s a twist to his mouth. ‘Great,’ I say. ‘We need someone to go through CCTV – we’ll put Kellegher and Reilly down for that; they’re pulling all the local footage they can get, they might as well watch it.’

Meehan nods, writing.

‘And someone needs to pull footage from the northbound 39A bus route yesterday evening: find the buses that stopped on Morehampton Road around seven, see if you can pick out Rory Fallon getting on, confirm what time he boarded and what time he got off in Stoneybatter.’ The gym rat has a finger up. That whipcrack rhythm, the one I used to love: even though I know better, it still hits me like a triple espresso. ‘Stanton’s on that. And we need someone to head out to Stoneybatter and time the route Rory says he took from the bus stop: down Astrid Road to the top of Viking Gardens, then up to Tesco on Prussia Street, buy a bunch of flowers and head back down to Viking Gardens. Meehan, you’re around the same build and age as Fallon; can you do that? Time it twice: once at your normal pace, once as fast as you can go.’

Meehan nods. Steve says, glancing back and forth between him and Gaffney, ‘Did Rory’s flowers show up in the bins on the quays?’

‘I looked,’ Meehan says. ‘Gaffney kept going with the door-to-door. The bins hadn’t been emptied since last night, by the state of them, but no irises anywhere. Some lad probably robbed them to give to his bird.’

‘Or,’ Breslin says, ‘they were never in the bins at all: Rory Boy tossed them in the river, because he didn’t want us pulling Aislinn’s blood or hair or carpet fibres off them. Where are we on her KAs?’

‘She didn’t have any immediate family, or much of a social life,’ I say, ‘but her friend Lucy gave us a few names and numbers to start us off. Someone needs to go round to Aislinn’s workplace, get her boss to come in and ID the body, and have the chats with all her colleagues. I want to know if she talked about Rory, and what she said.’

Steve says, ‘And we need to know if any of the colleagues had a thing for her. Just on the off-chance that Rory’s telling the truth’ – Breslin snorts – ‘someone might not have been happy that Aislinn had got herself a fella. And her colleagues were the only people she spent any amount of time with.’ Nice touch. If anyone spots us doing something that doesn’t point to Rory, we’ve got a potential stalker colleague to take the heat. It might even turn out to be true.