The Master appeared at the International Circus , his TARDIS in the form of a horse box . He hypnotised the circus troupe and plastic factory manager Rex Farrel to obey his orders as part of his plan to assist the Nestenes in their latest bid to conquer Earth. A Time Lord emissary alerted the Doctor to his rival's presence on the planet, and before the radio telescope could be used to bring the Nestene invasion force to Earth, the Doctor convinced the Master that the Nestenes would not distinguish between the Master and anyone else in their takeover, and the two worked together to fling the Nestenes back into space by "chang[ing] the polarity" whilst the radio telescope's transfer shift was still open. Afterwards, the Master fled. The Doctor, however, had already taken his dematerialisation circuit , preventing the Master from leaving Earth in his TARDIS. ( TV : Terror of the Autons )
At Heidnik's arraignment , he claimed that the women were already in the house when he moved in.  At trial, Heidnik was defended by A. Charles Peruto, Jr., who attempted to prove that Heidnik was legally insane .  Heidnik's insanity was successfully rebutted by the prosecution, led by Charles F. Gallagher, III. The fact that he had amassed approximately $550,000 in his bank and brokerage accounts was used to argue that he was not insane. Testimony from his Merrill Lynch financial advisor, Robert Kirkpatrick, was also used to prove competence. Kirkpatrick called Heidnik "an astute investor who knew exactly what he was doing."   Convicted of two counts of first-degree murder on July 1, 1988, Heidnik was sentenced to death and incarcerated at the State Correctional Institution at Pittsburgh.  In January 1989, he attempted suicide with an overdose of prescribed thorazine .