April 28 is the 118th day of the year (119th in leap years). There are 247 days remaining.
- 1908 — Myrtle Sorenson, Lucy Sorenson and Philip Gunness are murdered by Belle Gunness.
- 1908 — Belle Gunness died.
- 1946 — Paweł Tuchlin is born.
- 1961 — Futoshi Matsunaga is born.
- 1967 — Patrick Baxter is born.
- 1971 — Daisuke Mori is born.
- 1976 — Jürgen Bartsch died.
- 1982 — Bruce Lindahl's suspected victim, Debra Elizabeth Colliander, is found.
- 1987 — Sergey Kashintsev is apprehended.
- 1991 — Phillip Jablonski is apprehended.
- 1994 — Richard Jameswhite is apprehended.
- 2007 — Annick Van Uytsel is murdered by Ronald Janssen (possibly killed on April 27).
- 2015 — William Devin Howell's victims, Nilsa Arizmendi and Marilyn Gonzalez, is found.
- 2017 — Kenneth Williams died.
- 2022 — Billy Chemirmir is convicted of murder.
- 2022 — Malachi Uwem died.