Unidentified BX-series droid commando 4

"I hear something..."

- This droid's last words.

This BX-series droid commando  was stationed on the Separatist planet Lola Sayu in the Citadel prison around 21 BBY at the time of the Battle of Lola Sayu.

Biography
During the imprisonment of Jedi general Even Piell by the Separatists in the Citadel prison on Lola Sayu, this BX-series droid commando along with a fellow droid commando were tasked by warden Osi Sobeck to guard Piell's clone naval personnel and Republic Navy Captain Wilhuff Tarkin.

Battle of Lola Sayu
When the elite team of clone troopers led by Obi-Wan Kenobi and Anakin Skywalker arrived on the planet in an attempt to free the captive Even Piell, this droid along with the other one was still guarding the prisoners. This droid heard Jedi master Anakin Skywalker pull out his lightsaber and went closer to the door to investigate the sound, but was destroyed when Skywalker's blade cut through the door, cutting through this droid at the same time.

Behind the scenes
The BX-series droid commando, like every battle droid in The Clone Wars movie and The Clone Wars TV series, was voiced by Matthew Wood. His name was never given.