Kraz

Kraz was one of the NPCs that players saved while doing the Timed Event in Zul'Aman. Players saved him by killing the Dragonhawk aspect boss Jan'alai before the timer ran out.

Once freed, he armed a bomb on the nearby chest, blasting it open and causing players standing nearby to get a small knockback. The loot given depended on the order the players killed the bosses in, more info can be found at the Zul'Aman timed event page.

Wrath of the Lich King
In the expansion World of Warcraft: Wrath of the Lich King, Kraz moved from Zul'aman to Northrend as a quest giver in a small camp on the Northeastern area of Grizzly Hills. Fellow Zul'aman timed event prisoner Harkor can also be found at this camp.

Quotes

 * Conversation with Kraz after he was resqued:

Freedom! Kraz life was over. I thank you,.

Kraz should never have come to this place... should have known not to trust the human. A blind fool I was,, as are you if you follow his counsel

My son, lost for two moons, was last seen with the human, Budd. He told me I could find him behind the walls of Zul'Aman...

I followed his people here, and was captured with the rest. Without your help, I was doomed to die.

Thank you, stranger.