noun
bloodshed
BLUD-shed/ˈblʌdʃed/
Killing or injury involving violence and loss of blood.
The damaged shield and bloodstained cloak suggest recent bloodshed.

Etymology
Blood plus shed pictures blood being spilled from the body. The phrase became a noun for the violence that causes such bleeding, especially slaughter.
In context
end the years of bloodshed that had followed from Rothstein's killing