The Ceausescu method would work in many other cases as well.
It is drug free, relatively cheap and unambiguous.
Nicolae Ceausescu exhumed ‘wearing his black winter coat’
The remains of Romanian dictator Nicolae Ceausescu and his wife Elena were exhumed more than two decades after their execution in an attempt to quash conspiracy theories surrounding their death.
And it delivers a clear message to others as well. One of the virtues of public hangings.