There were two witnesses today appearing before the Mass Casualty Commission, one civilian member, and one staff sergeant, each of whom had a role in public communications during the events of the mass casualty. In the morning Director of Strategic Communications, Lia Scanlan testified. In the afternoon, Staff Sergeant Addie MacCallum gave his account of the events of April 18-19, 2020. Both witnesses had strong emotional responses at times during their testimony.