İşkenceyi (her) kim ki savunup meşru kılmaya çalışıyorsa…. The translation is “Whoever favours the torture and tries to legitimate it…” “Ki” means “that” in most cases, but here in this context it is a bit different. “Her kim ki” means whoever (or it might be shortened in daily conversations as “kim ki” although I still prefer “her kim ki”, which sounds better). If you remove “ki” here, remove automatically “her” as well (İşkenceyi kim savunup meşru kılmaya çalışıyorsa….). In this case, the translation will be “Who favours the torture and tries to legitimate it…” That’s the meaning will remain the same.