April 1 is the 91st day of the year (92nd in leap years), with 274 days remaining.
- 1962 — Renaud Hardy is born.
- 1965 — Marie Malvar (victim) is born.
- 1974 — Thomas Rainwater is murdered by the "Zebra murderers".
- 1974 — Linda Story is wounded by the "Zebra murderers".
- 1980 — Gerald Stano is apprehended.
- 1984 — Gary Ridgway's victims, Terry Rene Milligan and Sandra Kay Gabbert, is found.
- 1985 — "Bible Belt Strangler"'s suspected victim, Espy Pilgrim, is found.
- 1988 — Alexander Bychkov is born.
- 1989 — Víctor Saúl Sauceda Galván is murdered by Adolfo Constanzo.
- 1990 — Robert Ben Rhoades is apprehended.
- 1998 — Linda Marie Maybin is murdered by Robert Lee Yates.
- 2003 — Terri Rachals is released.
- 2016 — Diego Verdugo-Sanchez is murdered by Aaron Saucedo.