"Research Library Issues" ("RLI") focuses on current and emerging topics that are strategically important to research libraries. The articles explore issues, share information, pose critical questions, and provide examples. This issue includes: (1) Editor's Note (M. Sue Baughman); (2) Shooting at Florida State University Libraries: The Act, Aftermath, and Response (Julia Zimmerman and Susannah C. Miller); and (3) Thinking about the Unthinkable: A Personal Reflection on the June 1 Incident at UCLA and Library Responses and Roles in Active Shooter Situations (Virginia Steel). Individual articles contain endnotes.