In the year 19 BBY, Darth Vader, recently appointed with that title, mounted an assault on Brighthome, the Jedi Order's space station then held by the Imperial forces. The Sith Lord proceeded to eliminate every clone stormtrooper that stood in his path. Despite the possibility of a peaceful entry via his droid transmitting the necessary docking codes, Vader chose instead to engage in combat with the station's crew, resulting in bloodshed.
Vader's purpose in reaching the station was to delve into its archives. Darth Sidious, his Sith Master, had instructed him to retrieve a Kyber crystal from a Jedi he overcame in battle. The Sith apprentice was then to bleed the crystal, bending it to his will. Through the archives, Vader's droid pinpointed the location of Kirak Infil'a, a survivor of the Great Jedi Purge who had undertaken the Barash Vow.
The initial portrayal of the assault on Brighthome occurred in Darth Vader (2017) 2, a canon comic book from 2017. Charles Soule wrote the script, while Giuseppe Camuncoli provided the artwork.