Raid on the Crucible/Legends

Around 20 BBY, Hondo Ohnaka and the Ohnaka Gang raided the Jedi training cruiser Crucible, which was transporting a class of Jedi Initiates back to the Jedi Temple on Coruscant, for its supply of lightsaber crystals from Ilum.

The raid
Jedi Padawan Ahsoka Tano managed to force the pirates off the Crucible, but she was taken captive.