1974 Miami DEA building collapse
On August 5, 1974, at 10:24 a.m. EDT, a federal office building housing the US Drug Enforcement Administration (DEA) Miami Field Division office in downtown Miami, Florida, United States, collapsed after the roof caved in, causing the deaths of seven DEA employees and injuries to 15 others.
Source: Wikipedia — 1974 Miami DEA building collapse (CC BY-SA 4.0)