local T = {123, 123, 123, 123} -- creature entries

local function Reward(player)
    -- reward code (SQL?)
end

local function OnDeath(pUnit, event, unit)
    if(unit:GetObjectType() ~= "Player") then return end

    if(unit:IsInGroup()) then
        for k,v in ipairs(unit:GetGroupPlayers()) do
            Reward(v)
        end
    else
        Reward(unit)
    end
end

for k,v in ipairs(T) do
    RegisterUnitEvent(v, 4, OnDeath)
end