The Infocom Gallery: Deadline

High-quality scans of the gray box, manual, letter, coroners note, pills, and crime scene photo.
http://infocom.elsewhere.org/dsinclair/deadline_grey/deadline.html

Infocom Homepage: Deadline

Description, box art, release information, statistics, and packaging details.
http://www.csd.uwo.ca/~pete/Infocom/deadline.html

Matthew Murray: Deadline

Capsule review. "Deadline is a ground-breaking game that no adventure game fan--or mystery buff--should leave unplayed."
http://www.matthewmurray.net/Reviews/ComputerGames/Deadline.html

Infocom Games: Deadline

Introduction, specifications, box scans, sample transcript.
http://www.infocom-if.org/games/deadline/deadline.html

Infocom Documentation Project

PDF file of scanned original game manual.
http://infodoc.plover.net/manuals/temp/deadline.pdf