Download or read book Fire/EMS Department Operational Considerations and Guide for Active Shooter and Mass Casualty Incidents written by US Fire Administration and published by FEMA. This book was released on 2013-09-01 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than 250 people have been killed in the United States during what has been classified as active shooter and mass casualty incidents (AS/MCIs) since the Columbine High School shootings in 1999. AS/MCIs involve one or more suspects who participate in an ongoing, random or systematic shooting spree, demonstrating the intent to harm others with the objective of mass murder.