Assassinating

ppl. a. [f. ASSASSINATE v. + -ING².] That assassinates, murdering.

1682.  Lond. Gaz., No. 1736/3. That Assassinating association.

1797.  Holcroft, trans. Stolberg’s Trav., xci (ed. 2), IV. 201. The assassinating sword of the Romans.