- 1988
The Piotrkow Child Killer: Mariusz Trynkiewicz Piotrkow Trybunalski, Poland Former teacher Mariusz Trynkiewicz sexually assaulted and murdered four boys in Piotrkow Trybunalski, Poland, in 1988. - 2019 Gracious David-West - Port Harcourt Serial Killer Port Harcourt, Rivers State, Nigeria Gracious David-West terrorized Port Harcourt in 2019, strangling at least 15 women in cheap hotel rooms. He posed as a military officer and bound victims with b…
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