Seconds from Disaster S05E04 - Waco Cult

They were the Branch Davidians led by charismatic David Koresh. After a 51-day siege at the ranch of an armed religious cult, the Federal Bureau of Investigation tries to end the standoff with tear gas, but a fire breaks out and engulfs the compound. By the end 76 Davidians died and 4 ATF agents, including 22 children.