His girlfriend, Kathi Yaniskivis, whom he had met at the university, joined him there. Finally, in 1971, the FBI caught up with Mark.
पण मार्क युद्धविरोधी चळवळींमध्ये खूप गोवलेला होता; तो प्रदर्शनांमध्ये आणि मोर्च्यांमध्ये भाग घेत असे.