Kate and Ethan didn't know for a few days how to go about finding the murderer. They analyzed all the facts they knew and were able to deduce a few things that might have been helpful. Well, first of all, all the victims were killed at night, when the streets were empty and these people were wandering somewhere alone. Second, most of the victims were young people, all men. Third and most importantly, six of the total of seven killed were murdered in the King Cross neighborhood, so it could have been assumed that another young man would also fall victim in that district. Ethan and Kate hypothesized that the killer was attacking these people only to rob them. These were not any deliberate murders, just some psychopath attacked people with a gun and shot them straight in the head, leaving the corpses on the street, not even cleaning up after himself. Ethan also found out that no wallets, phones or anything of value were ever found with the bodies left behind. So they must have been robbery murders.
There were a lot of policemen all over Sydney now, most of course in the middle of the city, they also found out that here the most casualties had been killed. They walked around helplessly, not knowing how to go about looking for a criminal. They stopped people in the street and searched them in the hope of finding a gun with which they shot the victims. The searches only resulted in the arrest of many people with drugs, but that was not the point. However, Nathan did not like these searches, as many of the people arrested by the police for drug possession belonged to dealerships working for him. So he urged Ethan and Kate to rush the search a bit. They had already found the starting point, now they were talking to young guys hanging around the city at night. They gave them a phone number and told them to call them if someone tried to attack them or if they saw someone else being attacked. They promised a big reward for helping to catch the killer. This method proved to be more effective than the police, as after less than a week, the killer was captured by Kate and Ethan, and the police initially did not even know about it and continued their own search.
Nathan and three town boys in their twenties made an appointment for the evening meeting outside the block. They bought a case of beer, as always for such meetings, and sat on a bench near the playground. They drank, talked loudly, laughed. The party was successful. At two in the morning, when they were drunk, Nath staggered past the block. He began to sing when suddenly he felt something cold and hard against his temple.
"Give me the money and the dung phone, or I'll kill you like a dog," hissed a hooded man in his ear, who crept up to him unnoticed. At first, the boy did not think that it might be the murderer that was so loud lately.
"Fuck off," he growled at his attacker and began to prepare for the fight, but noticed that he had a gun to his head.
-Stay still or you'll be after you.
Nath had to keep cool if he wanted to live. Suddenly, the attacker hit Nathan on the head and escorted him to the car and the tires screeched away.