Alright so i was in the academy sublevels, i cleared the laigreks and he came out. Im going darkside so i asked for a reward and followed the dialogue options to kill him and take the salvage but Kreia says dont kill him so i agree with her and tell Jorran to go and he leaves. I go back to the salvagers camp and he is not there? hes got a lightsaber part that i need so i was wondering if hes gonna be there or what??

No, if you threatened to kill him then you're never going to see him again. If you have the body of the dead salvager from the enclave, as well as the will (altered), take them to Zherron in the militia headquarters at Khoonda and you should get whichever lightsaber part you are missing.

Alright thanks HK