A blind beggar and informant who secretly eavesdrops on the robbers at a bar. Fleeing the killers, he seeks out Tracy but is murdered in his apartment before police arrive.
Sightless serves as an informant whose intelligence advances Tracy's case.
Sightless brings information about the robbers to Tracy's residence, and Tracy uses the information to pursue the fence.
Their contact changes from distrust to belated assistance.
Vitamin stops Sightless at Tracy's door because he believes the beggar is up to no good, but later passes Sightless's message to Tracy.
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