Hexum'Baz, a Dug of the male variety, worked for Sebolto as the Galactic Republic neared its end, during its final years. Someone, remaining nameless, desired him dead but the reasons for this desire were never made clear. The mysterious individual, in 32 BBY, expressed a simple wish: the "worthless" Dug's demise. Jango Fett ultimately collected the reward offered for his capture.
Strangely, in the Star Wars: Bounty Hunter: Prima's Official Strategy Guide, the bounty placed on him is listed as 3,000 credits if captured alive (despite the fact his worth is the same if he is dead), and only 1,500 if he is dead.