Herbert, Bonnie, Nancy, and Kenyon Clutter are murdered in Holcomb, Kansas.
Las Vegas police arrest Perry Smith and Richard Hickock on a Kansas warrent for passing bad checks.
Capote interviews Richard Hickock and Perry Smith on death row at the Kansas penitentiary at Lansing.
Richard Hickock, followed by Perry Smith confess to the Clutter murders.
A jury of 12 men found Richard Hickock and Perry Smith guilty. They were sentenced to death.
The original exection date was postponed.
Lawyers for Hickock and Smith appeal the case all the way to the Kansas Supreme Court. Eventually, the U.S. Supreme Court declines to review the case
The killers are executed shortly after midnight; Hickock first, pronounced dead at 12:43 a.m.; then Smith on the same gallows at 1:22 a.m. They are buried in unmarked graves at a nearby cemetery.