August 20 is the 232nd day of the year (233rd in leap years). There are 133 days remaining.
- 1926 — Charles Barr died.
- 1946 — Yoshio Kodaira is apprehended.
- 1950 — William Suff is born.
- 1954 — Luo Shubiao is born.
- 1955 — Georgann Hawkins (victim) is born.
- 1960 — Thomas Huskey is born.
- 1961 — Richard Holman is born.
- 1961 — Euphemia Mondich died.
- 1962 — Leroy McGahuey died.
- 1988 — Víctor Julio Hernández Sánchez and Aracelly María Astúa Calderón are murdered by "El Psicópata".
- 1993 — Jozef Slovák is sentenced to Life imprisonment.
- 1997 — Andrew Six died.
- 2001 — Kevin Taylor is apprehended.
- 2010 — Ramon Berloso died.
- 2020 — Yuri Sparikhin is apprehended.