Reynhard Sinaga
Reynhard "Rey" Tambos Maruli Tua Sinaga (born 19 February 1983) is an Indonesian serial rapist who was convicted of 159 sex offences, including 136 rapes of young men, committed in Manchester, England, between 2015 and 2017, where he was living as a student. Sinaga was found guilty of drugging and sexually assaulting 48 men during this period, 44 of whom he raped, some repeatedly, although police believe he was offending for years beforehand.