Board Thread:Naruto Discussions/@comment-26708623-20161103030058/@comment-3441296-20161103193438

Kinkaku did not kill Tobirama canonically. All that is known is that the borthers almost killed the 2nd raikage and hokage, and even later then that, the Kinkaku force (unknown in managa if kinkaku was even in it) killed Tobirama as he held them off to allow the others to escape.