I'd wait at least three days before declaring him dead....

http://www.google.com/hostednews/afp/article/ALeqM5g7MNwM911wnD38aalLmWx3zoP8sg?docId=CNG.3a8d1f3f49cff62f19dfb3f13c262436.f1

(Thanks for the link, Mathew!)