Ironically, his modern fame now rests primarily on a pamphlet written in 1695, called "Gallienus Redivivus, or Murther will out, &amp;c. Being a true Account of the De Witting of Glencoe, Gaffney." The focus of this was William's alleged complicity in the 1672 death of Dutch Republican leader Johan de Witt, with other crimes including Glencoe included as secondary charges. During the 1745 Rising, Charles Stuart ordered Leslie's pamphlet and the 1695 Parliamentary minutes of the investigation to be reprinted in the Edinburgh "Caledonian Mercury."