Broadcast message

[nrgjrteherh435]

im trying to broadcast a message when an entity dies (yes i have the hook connected to the function bla bla) and i get an error when trying to execute 

my code:

Code:

function OnKilled(World)
    World:BroadcastChat("Death Lingers...");
    return true;
end

my error:

Code:

LUA: Plugins/CustomPlugin/CustomPlugin.lua:25: attempt to call method 'BroadcastChat' (a nil value)
Stack trace:   Plugins/CustomPlugin/CustomPlugin.lua(25): (no name)
Stack trace end
Error in <attached> calling function <callback>()

any help is greatly appreciated