Sudden instant death in Duskwood

Hello everyone, this afternoon I was doing some pvp in Duskwood with some friends. We were there for 1-2 hours. Almost when we were done, after 20 seconds after killing a player my hp went from 100% to 0%. The combat log didnt show any damage done to me.

I know this sounds like the Socal Lady Killer but I swear it happened.

https://i.imgur.com/u9IWIMb.jpg

There you can see my combat log (its in spanish tho)