Originally intended for the unpublished Showcase (DC, 1977 series) #105. Story printed in the limited distribution Cancelled Comic Cavalcade (DC, 1978 series) #2. Original version of the story had a 2-page sequence of Deadman saving a boy during the time he is travelling across town (between panels 2 and 3 on page 4 of this version of the story).
On back cover of comic.