A Starfleet crewman in Voyager's engineering department who is found dead in 2372, the victim of an unprovoked killing by the Betazoid Maquis Lon Suder.
Frank Darwin is a member of the engineering staff of Voyager. His death is the starting point of the second-season episode Meld.
Darwin's body is discovered inside a conduit in engineering, and the Doctor establishes that he was killed by a blow to the head rather than by an accident. Tuvok's investigation leads to Lon Suder, who had been on duty with him and whose DNA is found on the body.
Suder confesses calmly, offering no motive beyond a dislike of the way Darwin looked at him. Tuvok, unable to accept a murder without a reason, performs a mind meld with Suder that nearly destroys his own emotional control.