Conversation so far:
What's relevant about Wesley Dodds' Sandman's Twilight Years?
Wesley Dodds' Sandman is one of a number of Justice Society members who finds themselves in the Ragnarok Dimension during the early Modern Age of comic books.
Are there any other interesting aspects about Wesley Dodds' Sandman besides the Twilight Years?
Both Wesley Dodds' Sandman's age and his physical limitations became a theme writers would use in this character's post-Crisis stories.
What is Wesley Dodds' Sandman's Zero Hours?
During Zero Hour, Wesley Dodds' Sandman is returned to his proper age by the Extant.
Who is Jack Knight?
Jack Knight is the son of Wesley Dodds' Sandman's JSA teammate Starman.
Does Wesley Dodds' Sandman fight crime during his Twilight years?
Does Wesley Dodds' Sandman go after Doctor Fate?
Wesley Dodds' Sandman's prophetic dreams alert him to the identity and location of the new Doctor Fate.
What else is notable about Wesley Dodds' Sandman diminishing age besides his prophetic dreams alerting him to the identity and location of the new Doctor Fate?
As he grows older, Wesley Dodds' Sandman's strength level diminishes in relative proportion to his age.

Question: When did he commit suicide?
Self-contained rewrite: When did Wesley Dodds' Sandman commit suicide?