Reynhard Sinaga’s reign of terror came to a sudden and violent end when his last known victim awoke from a drug-induced fog to discover he was being assaulted.

Semi-naked and in an unfamiliar flat, the teenager summoned all of his strength to push the Indonesian stranger off him and escape to call the police.

Just hours earlier, he had been enjoying a few drinks at the Factory nightclub in central Manchester but got separated from his friends and had stepped outside for some fresh air.

It was around 12.30am on June 2, 2017. The 18-year-old was perched on some steps just a stone’s throw from the club when he was approached by a slight Asian man in his early 30s.

The pair got chatting and after a few minutes, the man suggested he come home with him, to a block just opposite the club, and try to contact his friends from there.

CCTV footage showed the pair strolling along together and then making their way upstairs to Sinaga’s two-bedroom flat.