local function GetMurderer()
    local plrs = game:GetService("Players")
    for i,v in pairs(plrs:GetPlayers()) do
        if v.Character:FindFirstChild("Knife") or v.Backpack:FindFirstChild("Knife") then
            return v.Character
        end
    end
end
local function GetSheriff()
    local plrs = game:GetService("Players")
    for i,v in pairs(plrs:GetPlayers()) do
        if v.Character:FindFirstChild("Gun") or v.Backpack:FindFirstChild("Gun") then
            return v.Character
        end
    end
end

print(GetMurderer())
print(GetSheriff())

if GetSheriff() then
    local SheriffOutline = Instance.new("Highlight")
    SheriffOutline.FillColor = Color3.fromRGB(0,0,255)
    SheriffOutline.FillTransparency = .75
    SheriffOutline.OutlineColor = Color3.fromRGB(0,0,255)
    SheriffOutline.Parent = GetSheriff()
end

if GetMurderer() then
    local MurdererOutline = Instance.new("Highlight")
    MurdererOutline.FillColor = Color3.fromRGB(255,0,0)
    MurdererOutline.FillTransparency = .75
    MurdererOutline.OutlineColor = Color3.fromRGB(255,0,0)
    MurdererOutline.Parent = GetMurderer()
end