Deathblow n. : A mortal or crushing blow; a stroke or event which kills or destroys.

Example:
What was the 'Deathblow' for the McCain campaign?

Taxonomy
Deathblow, John Cray, Team 7, Michael, clones, Genevieve, art, death, Joe, Judgement, free encyclopedia, abilities, the Black Angel, Fictional character, Publication history, character biography, powers, manifest.

Defination from the web:
Deathblow/Wolverine (by Aron Wiesenfeld and Richard Bennett, Image Comics/WildStorm, 64 pages, 1997, ISBN 1-887279-61-X) Batman/Deathblow: After the Fire (by Brian Azzarello, Lee Bermejo, Tim Bradstreet, and Mick Gray, 160 pages, 2003, Titan Books, ISBN 1-84023-664 ...