‘Maybe she is part of a double act or maybe she got a call later and then went to his room.’

‘Did Michelle say he was into anything weird?’ asked Mia.

‘He was into threesomes – boys and girls. They were sometimes joined by a young Indian lad from the Mansions. I’ll press her on that. Get a name. We’ll search her apartment and get a print from Rizal. I don’t put anything past Rizal.’

‘Had to be someone he accepted easily into the room,’ said Mia.

‘Not necessarily,’ said Mann. ‘People let their guard down in hotels. You never think twice about answering the door. You expect it to be a safe environment but the truth is anyone can get in a lift and come up to the floor and knock on the door.’

‘If it was the woman he was seen leaving the bar with then she must be attractive – twenty to forty?

‘Maybe even younger,’ said Mann. ‘Lots of girls can make themselves up to look eighteen these days. That’s all she needs to be to pass unhindered into clubs, bars, hotel lounges. It’s not as if anyone ever checks ID.’

‘A schoolgirl murderer – that would be the first in Hong Kong,’ said Shrimp.

‘What about the wallet?’ said Sheng. ‘How did she say she got that?’

‘She told me about a system she has for giving dope in exchange for wallets, money, whatever the girls manage to get. She’s dealt with this person before on a few occasions. This time the drop was much larger than usual.’

‘So, the perp’s planned this and it might not be a one-off. Fuck, that’s all we need. Daniel…injuries?’

Daniel pinned up photos. ‘Apart from sexual mutilation and decapitation, he was tortured. If you have a look at this photo…’ he pointed to the close-up of the bedroom ceiling, ‘…you can see three arcs of blood which went across the ceiling. They were made at exactly the same time. That means the weapon we are looking for has three blades and is capable of lifting out the flesh and firing it at great speed and velocity in an arc several feet across the ceiling. It has stripped him of most of the flesh from his torso.’

‘My guess is it’s a customized street weapon but it is an unusual one,’ said Mann.

‘Each band of metal is at least an inch wide.’

‘So it’s the same person?’ said Sheng.

‘No, not necessarily. The weapon is the same, that’s all,’ answered Mann.

Daniel continued, ‘Added to that, his chest was opened by several frenzied cuts and slashes with what looks like a small-bladed knife, there is scraped off flesh, and the bottom four ribs were removed, two of them by breaking. Victim was alive until this point.’

Daniel was filling the central board with the images of Max Kosmos’s mutilated body. Mann didn’t need to look closely at the photos, he still held a snapshot of the scene in his head. Later on, years from now, he knew it would feature somewhere in his dreams. The incident room was hushed, even though it was full of officers, and only the sound of a DC tapping on a keyboard came from the far end.

‘Trace elements left behind at the scene, Daniel?’

‘We found three types of hair in the room, apart from the victim’s.’ Daniel continued. ‘Pubic hair on the victim’s body that’s not his. We also found a long human hair, it’s been analysed. It is hair that’s been treated, dyed, bleached before that. The chemicals in it are linked to ions used for human hair that’s made into wigs, or hair pieces.’

‘Lots of women wear wigs or clip-on hair pieces made from real hair,’ said Mia. ‘We’ll see where the hair came from. We might get lucky with a particular manufacturer.’

‘Perp used a wire to wrap around his testicles, the type electricians use,’ said Daniel. ‘They used bondage tape to tie his legs. I think it’s a common enough one; it’s one that sticks to itself. We are still analysing it to see if we have anything of the perp on there, but the perp doesn’t seem to care what we find: we have DNA and prints.’ Daniel finished pinning up the last of the photos. ‘This print,’ he pointed to the knee print on the sheet by Max Kosmos’s body, ‘is a woman’s knee: slightly different shape to a man’s, narrower, trapezoid. Men’s are rectangular, more prominent bone at the top.’

‘We have a woman killer, alone or with an accomplice, but definitely a woman. What can we tell about her from the scene? Risk taker. Not interested in money. She’s in it for the thrill, retribution, revenge. She doesn’t care if she gets caught. She likes to take it to the edge – she gets off on it,’ said Mann.

‘She must have worked up to this,’ said Sheng. ‘Max Kosmos could easily have come round. Perp knows their stuff but they must have had practice along the way. Find out if any other businessmen are missing here in Hong Kong. Find out if there were any un-followed complaints, anything at all that would fit this. Can’t have been the first time she harmed someone.’

Shrimp stepped up to the board and pinned up the photo of Ishmael. ‘One of the Africans in the Mansions told us that his brother had a secret girlfriend in the Mansions and that he has now disappeared. He is pretty sure the Outcasts had something to do with it or that they know something.’

‘How long ago was that?’

‘A year. Should we alert the business community about the killer?’ Shrimp asked.

Mia Chou shook her head. ‘No, definitely not. We risk hitting the Hong Kong economy where it will do the most damage. Hong Kong only exists for business. We can’t risk putting the businessmen off coming.’

Sheng looked around the packed room. ‘Okay, let’s be clear about who’s handling what. Daniel Lu will handle all forensics for both murders so that we can see what’s reoccurring. Michelle Mendoza stays in custody. I will handle all interviews from now on. My team will do all the background on Max Kosmos. We’ll get a search started for all missing foreign businessmen that fit the perp’s specs in case there are other victims we don’t yet know about. Mia’s team will deal with Rajini. Ng, you can liaise between the two departments. I want to know what is cross-referencing across both camps. Keep us on track. If there is a link to the Outcasts then it follows to the Mansions too. Rajini Singh was from there. Max Kosmos was staying just a few doors up from there. Shrimp, your English is Americanized, I want you to be the businessman decoy and go undercover in the bars, stay in Vacation Villas. It’ll take a couple of days to set it up. We need to make you look good, give you a watertight cover. You’ll be watched by a team from my department. You’ll be wired all the time. We need to get behind the Outcasts, our murderer could be one of them. Operation Schoolyard continues.’

‘No,’ said Mann, ‘it’s too risky. I’m stalling it for now.’

Sheng didn’t answer at first. He stared at Mann coldly then he turned to Mia. She nodded. Sheng threw up his hands exasperated. ‘No fucking way…’

‘Something’s not right. Tammy’s at risk. We need more information. I’ve told her to sit tight. It can’t be rushed into. There’s too much at stake. I want it to work. No way am I letting her walk into a trap.’

Chapter 40

Ruby picked up the black doll and held her at eye level.

‘I’m sorry, baby. I should have never brought your daddy here but I was lonely. I never meant to hurt your daddy. I got frightened. He shouldn’t have tried to touch me. I am sorry, baby. Your daddy was special to me; he was the first that I kept here; he was the first that I…’ She couldn’t bring herself to say it. ‘I never meant to hurt him but then I couldn’t stop.’

She grew angry, shaking the doll without realizing. Its eyes banged in the plastic sockets.

‘I told him not to touch me. I told him. He didn’t listen.’ She stopped and breathed hard, calmed, she kissed the doll and placed it back down on the shelf. She put the photo of Ishmael in its lap. She turned back and smiled at all of the dolls. ‘Who wants to get a last look at Daddy before Mummy has to let him go?’ The dolls’ perfect little ruddy plastic faces smiled back. ‘Of course you all do,’ she laughed. She scooped the dolls up in her arms and pulled back the curtain and opened the door to her bedroom. His breathing was laboured. Ruby had removed the ball gag. There was no need to keep it. No one would hear him now. She crept in the room in the dark.