Through a nationally representative survey of 1,840 U.S. adults, this study examined fright, anger, and anxiety as emotional predictors of how publics respond to organizational crisis communication and communicate with each other during a hypothetical terrorist attack. The study also examined the influences of age, gender, and publics’ involvement with prior media coverage of the 2013 Boston Marathon bombings through hierarchical regression analyses. Crisis emotions, involvement, and demographics are significant predictors of different communication behavioral outcomes. Insights and implications for practice and theory development are discussed.