The Devil's Teardrop: A Novel of the Last Night of the Century

Blurb

The Devil's Teardrop is a novel published in 1999, written by author Jeffery Deaver. It, like other books of Deaver's, is a suspense-crime novel and contains several plot twists. Deaver, whose suspense fiction has been hailed as "a thrill ride between covers" by the Los Angeles Times, imagines a chilling scenario: a killer who is set to strike on the last night of this millenium – and unleash a devastation plot of murder and mayhem. The devil's teardrop is also a nickname for obsidian.
It was the basis for the 2010 made-for-TV movie of the same name.