Deadly Assassin
From Tardis Wiki, the free Doctor Who reference
In Earth-33⅓, the Master was able to dispel the Fourth Doctor's belief that he was the Deadly Assassin by producing multiple Time Lord eyewitnesses that confirmed his whereabouts at the time of the assassination, one of whom proudly held up a severed leg, another the Master's severed arm and yet another a lone ear. (COMIC: Doctor Who? 187 [+]Loading...["Doctor Who? (DWM 187 comic story)"])
Behind the scenes
In the television story The Deadly Assassin [+]Loading...["The Deadly Assassin (TV story)"], Chancellor Goth, acting under orders from the Master, was the titular assassin.
