Kelkko and other Anzati assassins were hired by Dark AcolyteSora Bulq to help train the clone Shadow army of Morgukai warrior Bok. Kelkko and the other Anzati then went to Saleucami, to it's cloning complex to start training.
Unfortunately, the Republic found out about the shadow and laid siege to the planet. Despite that, Kelkko and the other anzati continued to train despite the conditions. Kelko and the other anzati were then sent to attack Jedi general Oppo Ranciss. Kelkko fought hard against Ranciss. Kelkko was among the last to stand against Ranciss. As Kelkko was going in for the kill, he was pushed into a energy barrier and killed. However, Kelkko's fight with Ranciss gave Bulq the oportunity