The chapter vividly describes the chaotic and harrowing aftermath of a school shooting at Columbine High School in 1999, detailing the response of law enforcement and the experiences of the trapped students. It portrays the confusion, fear, and heroism that unfolded during the tragic event, highlighting the challenges faced by both the authorities and the students involved. The narrative delves into the lasting impact of the Columbine shooting on America, discussing the changes in safety measures in schools, the emergence of gun safety movements, and the disturbing trend of mass shootings that followed globally.