Across her 25-year career in criminology, the author has watched with fascination and fear as the world has shifted from a place where televised nightly news and daily newspapers provided the only information on crimes and killings. Now, nonstop, instant global news coverage and 24-hour television and the internet enable people to see and replay crime, violence, terrorism, and murder coverage in real time, and in addition they see Facebook and YouTube feeds filmed by criminals themselves while perpetrating crimes. This riveting text focuses on how these advances are perpetuating this era's new and more massively deadly acts. It intertwines vignettes from current events, perpetrator statements, police reports, and current research to show how copycat crimes are linked to media, technology, and our digital culture. Includes recommendations to reduce the criminogenic effects of media, technology, and digital culture, and an appendix of technology and media-influenced copycat crimes.