Crewman Bertram
Crewman Bertram was a science crewmember stationed onboard Deep Space 9.
Bertram was a weapons collector and in 2375 he tried to gain unauthorized access to the schematics for the TR-116 rifle which had been used to commit three murders on the station. Ezri Dax, who was under the influence of Joran Belar, nearly killed him because she believed he might be the murderer. (DS9: "Field of Fire")