4 BBY

Events
Kanan Jarrus and the Grand Inquisitor have their final showdown aboard the Imperial Star Destroyer Sovereign. Jarrus defeats the Inquisitor, slicing his lightsaber in two, leaving the Inquisitor hanging from the platform above a reactor pit. The saber fragments fall into the reactor, causing an overload. Rather than allow himself to be killed by Jarrus or anyone else, the Grand Inquisitor elects to fall into the erupting reactor and dies.