Challenge to Farhan Qureshi

I recently watched portions of a debate between Farhan Qureshi and Sami Zaatari, the topic was the problem of evil. Farhan seem to suggest that during the debate that he is a  determinist.  In light of this admission that he is a determinist I invite Farhan Qureshi to reconcile how is it even possible for there to be evil in light of HIS WORLD VIEW.

Farhan defines evil as unnecessary suffering during the Q and A session, another question for Farhan since he is a determinist how can he make the claim that certain actions are unnecessary if all of our actions are predetermined?

Since certain actions which people commit are predetermined and those very actions Farhan identifies as causing unnecessary suffering, i.e evil. That presupposes the person who is causing unnecessary suffering didn't  necessarily have to engage in those actions.

Which entails free will and that would be contrary to the position of Farhan Qureshi. I assume Farhan would define a problem in a broad sense as doing things out of the norm. But how is evil even a problem since people are simply acting out their predetermined nature which Farhan would say is normal?

I invite Farhan Qureshi to address my questions in light of his world view.