In Oklahoma City Bombing: American Terror, filmmaker Greg Tillman delves into the harrowing events of April 19, 1995, when a bomb devastated the Alfred P. Murrah Federal Building in Oklahoma City. The documentary, premiering April 18, offers a moment-by-moment account of the chaos, shock, and acts of courage that unfolded in the wake of the deadly attack.

The film features crime scene recreations, firsthand accounts from survivors, first responders, and law enforcement, and audio-recorded interviews with domestic terrorist Timothy McVeigh, the man responsible for the bombing — all shedding new light on the tragedy that claimed 168 lives. Probing how the FBI collaborated with local authorities, the documentary takes a detailed look into the investigative methods — and strokes of pure luck — used to bring McVeigh and his co-conspirators to justice, while also exploring the personal demons driving McVeigh’s radical, far-right, insurrectionist agenda.

Produced by Tiller Russell (Waco: American...