John Wayne Gacy hat zwischen 1972 und 1978 33 Jungen und junge Männer ermordet. 1994 wurde er in Illinois durch letale Injektion hingerichtet, doch zuvor:

Before the execution began, the lethal chemicals unexpectedly solidified, clogging the IV tube that led into Gacy’s arm, and prevented any further passage. Blinds covering the window through which witnesses observed the execution were drawn, and the execution team replaced the clogged tube with a new one. Ten minutes later, the blinds were reopened and the execution resumed. It took 18 minutes to complete.

John Wayne Gacy (wikipedia)