Described as a ‘monster’ and a ‘psychopath’ , Reynhard Sinaga is the most prolific rapist in British judicial history.
The sick predator preyed on lone vulnerable men and exploited Manchester’s vibrant student culture to find victims.
Stalking the streets in the early hours, he lured drunk men back to his flat at Montana House, on bustling Princess Street in the city centre.
Striking up conversation with men who were lost, or had been kicked out of clubs, he would tell them they could use his apartment to charge their phones, or call their friends.
The intoxicated victims all believed the slight, softly spoken PhD student was no threat, mistaking him for a Good Samaritan.
But once inside his tiny student flat, Sinaga spiked their drinks with GHB or GBL , rendering them unconscious.
He then used two iPhones to film himself raping and sexually assaulting them while they were knocked out.
Sinaga is currently serving a 40-year jail term for a string of rapes and sexual assaults.
The Indonesian student, 37, was convicted of 159 crimes against 48 men between January 2015 and May 2017.
But detectives believe the total number of victims is 206 and say his offences span more than a decade.
Because of the vast-scale of the case and sheer number of victims, four separate crown court trials were held with four separate juries.
Held over 18 months, reporting restrictions prevented the case from being reported until all four verdicts had been returned and Sinaga was sentenced in January 2020.
When he was finally unmasked to the world, detectives knew many more victims were likely to come forward.
In the days that followed, specialist officers manned a special phone line at Greater Manchester Police’s Nexus House.
A major incident reporting service was set up with information on how to report and how to get help from the male rape charity Survivors Manchester and St Mary’s Sexual Assault Referral Centre (SARC).
Within the first few days there were 120 reports received - the vast majority within the first three or four days.
As well as potential victims, police had several reports from people thinking they knew someone who may have been attacked by Sinaga.
“The pressure was immense,” Detective Chief Inspector Zaheer Ali, who led the investigation, previously told the M.E.N.
“It was almost like starting again.”
In total, 155 people contacted police to report Sinaga following his sentencing in January 2020.
Of those, 23 men who all self-reported, have been confirmed as victims.
All have decided not to pursue prosecution as they are satisfied with the convictions and sentence already secured.
However 60 men remain unidentified and police are keen that they all receive appropriate support.
Investigators say they will never rule out further prosecutions.
“If that’s what they need and want then it’s definitely not something we would close the door on,” DCI Ali said previously.
“The thought that there are 60 people out there suffering in silence, or not sure what’s happened to them, is awful.
“We want to speak to them for two reasons. First of all we want to make sure they’re getting the support they need.
“But also in case they are unsure themselves if they’re a victim or not. It might be that we can help them fill in the blanks.”
Sinaga was found guilty of 136 counts of rape, eight counts of attempted rape, 13 counts of sexual assault and two counts of assault by penetration.
He was jailed for 30 years at Manchester Crown Court, but prosecutors later pushed for senior judges to impose a life sentence under the Unduly Lenient Sentence (ULS) scheme.
The rapist’s minimum jail term was increased to 40 years by judges at the Court of Appeal last December.
He must spend four decades behind bars before he is eligible for parole.
But Judge Suzanne Goddard QC - who presided over all four trials - described the rapist as a “highly dangerous, cunning and deceitful individual who will never be safe to be released”.
