User blog comment:Calvincambridge30/Demon and Angel casulties/@comment-95.112.193.114-20151022181843

Well, Uriel killed some angels

Castiel killed at least 4

Dean killed Zachariah

Lucifer killed Castiel

Michael killed Anna

Raphael killed Castiel

Alastair killed a reaper

I think some died of screen, slaughtered by the forces of hell as angel blades became more common weapons.