- "Senator Jubben. STATUS: Terminated. Baron Wazado. STATUS: Terminated. Senator Amidala. STATUS: ABORTABORTABORTABOR-"
- ―From the recovered log of Zam Wesell's ASN-121
ASN-121 was a hovering ASN courier droid similar in appearance to a remote. It could wield a number of weapons, including a flamethrower, harpoon, sniper blaster, gas dispenser, and various drills and cutters. The droid was capable of emitting disruptive energy beams, which allowed it to bypass security screens. Other implements, like spy sensors, could also be attached to the droid's modular frontal tool chuck. Powering the droid was a fusion reactor, which required a power converter array to mediate the energy flux. This converter array could also double as a self-defensive electroshock device. Though ostensibly a courier, the droid was actually an assassination model made by the Malkite Poisoners. They made one for the Clawdite assassin Zam Wesell to serve as her personal assassin droid, used in an attempt to kill Senator Padmé Amidala on Coruscant prior to the Clone Wars.
In 22 BBY, bounty hunter Zam Wesell used the droid in an attempt to assassinate Senator Padmé Amidala, who was residing in a senatorial apartment in a Coruscant skyscraper. The droid cut a hole in the window of Amidala's chamber, and through this hole inserted a canister containing two kouhuns.
When Anakin Skywalker and Obi-Wan Kenobi sensed a disturbance in the room, they saved Padmé by slashing through the kouhuns using their lightsabers. In order to find out who sent ASN-121, Obi-Wan jumped through the window and grabbed the fleeing droid. It attempted to shake Kenobi off, but Wesell fired a sniper rifle and destroyed it, leaving Kenobi free-falling until he was saved by Anakin's appropriated airspeeder.
- Star Wars: Bounty Hunter
- Jango Fett: Bounty Hunter
- Star Wars: Episode II Attack of the Clones (First appearance)
- Star Wars: Episode II — Attack of the Clones comic
- Star Wars Episode II: Attack of the Clones junior novel
- Star Wars: The New Droid Army
- Star Wars: The Clone Wars: Sharpshooter
- The Clone Wars: Decide Your Destiny: Crisis on Coruscant
- Star Wars Galaxies: An Empire Divided
- Star Wars: Attack of the Clones: The Illustrated Companion
- Star Wars: Attack of the Clones Incredible Cross-Sections
- Star Wars: Complete Cross-Sections
- The New Essential Guide to Droids
- Star Wars Insider 60
- The Official Star Wars Fact File 43 (ASN1-2, ASN-121 Assassin Droid)
- Star Wars: The Official Figurine Collection 20 (Assassin Droid: ASN-121)
- Star Wars: The Official Figurine Collection 48 (Toxic Killers: Kouhuns)
- The Complete Star Wars Encyclopedia
- Rebellion Era Campaign Guide
- Star Wars Trading Card Game – Attack of the Clones (Card: Assassin droid ASN-121 (A))