Unidentified Jedi (Kouru's kyber crystal)

A Force-sensitive individual served as a Jedi of the Jedi clans. During the Sith rebellion against the Jedi clans, the Sith apprentice Kouru killed the Jedi while her master watched and stole their lightsaber. Although Kouru thought it would be a waste to destroy the already forged lightsaber, her master told her it was better to make her own weapon, and so hours after the Jedi was killed, Kouru used the kyber crystal from their lightsaber to piece together her own lightsaber in the shadow of the battlefield. Twenty years after the Sith rebellion, Kouru obtained another lightsaber and was reminded of her own lightsaber and the Jedi she had killed before creating it.

Text and facts from the “Unidentified Jedi (Kouru's kyber crystal)” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.