Surprised English Oak is as far down the list, and its certainly far harder than Ash
Lignum vitae does not get a mention, this was the traditional wood used for policemans truncheons, incredibly dense/heavy, sinks like a stone, its over double the weight of Oak, and Oak is heavy - and google tells me its Janka rating is 4800 pound foot
Excluding war, intentional homicides are about half that.
Once you add in war, it will almost certainly be more than that.
And that is only intentional killings. If you include accidental killings (most of which are caused by some form of negligence), it will be more again.