A list of events in 2015 related to serial killers.
January[]
- 22 — Bartolomeo Gagliano died.
- ? — Bryan Patrick Miller is apprehended.
February[]
- 16 — Joseph Magaletti died.
- ? — "Noh" is apprehended.
March[]
- 12 — J. C. X. Simon died.
April[]
- 12 — Johnny Avalos is apprehended.
- 25 — Zoltán Ember died.
- 28 — William Devin Howell's victims, Nilsa Arizmendi and Marilyn Gonzalez, is found.
- 30 — Dennis Stanworth died.
- ? — Jairo Alexander Beltrán Castañeda is apprehended.
- ? — Bakhtiyor Matyakubov is apprehended.
- ? — Bo Georg Ehrlander is murdered by Dariusz Kotwica.
May[]
- 5 — Clarence Victor died.
- 12 — William MacDonald died.
- 21 — Gerhard Hintermeier and Erna Hintermeier are murdered by Dariusz Kotwica.
- 27 — James Fairweather is apprehended.
- ? — David Virgulák is apprehended.
June[]
- 8 — Dariusz Kotwica is apprehended.
- 26 — Adolph Laudenberg died.
July[]
- 18 — Neal Falls died.
- 19 — Koos Hertogs died.
- 29 — Tamara Samsonova is apprehended.
August[]
- 1 — Arsen Bayrambekov is apprehended.
September[]
- 21 — Renaud Hardy is apprehended.
- 21 — Robert Rembert is apprehended.
October[]
- 1 — Alfredo Prieto died.
- 2 — Robert Howard died.
- ? — Gennady Laletin is apprehended.
November[]
- 30 — Fredy Armando Valencia is apprehended.
December[]
- 18 — Douglas Baptista is apprehended.
- 22 — Billy Glaze died.
- ? — Adrián Arroyo Gutiérrez is apprehended.
Unknown[]
- ? — "Albanian serial killer" is apprehended.
- ? — Carlos Autalán is apprehended.
- ? — Juana Barraza marries Miguel Quiróz.
- ? — Pavel Bondarenko is apprehended.
- ? — Fausta Bonino is apprehended.
- ? — Mane Driza is apprehended.
- ? — Maria Nazaré Félix de Lima is apprehended.
- ? — Francisco García Hernández is apprehended.
- ? — Demorris Hunter is apprehended.
- ? — Alexander Maslich died.
- ? — Mphatsoe Ntjelo is apprehended.
- ? — Jesse Ray Otañez is apprehended.
- ? — Stephen Port is apprehended.
- ? — Alexey Skvortsov is apprehended.
- ? — Tiffany Sayre is murdered by Neal Falls.