Season 19 ros one more task?

lev 70 t7 have done season and got class set of tal rasha am trying to complete chapter 4 slayer have to kill zoltun kulle at level 70 torment 7 but where can I find him please, would be extremely grateful for any guidance so I can get this finished,
many thanks in advance

Hi :

I’m surprised you have to ask that… it’s a bounty that comes back fairly often… but, here you go… check out the Archives of Zoltun Kulle in Act 2.