WACO, Texas – A fiery standoff in 1993 killed four federal agents and 76 people inside a religious compound in Waco, Texas.

Autopsy results showed some of the victims had been shot and stabbed, likely as a mercy killing or suicide attempt. FBI investigators said one of leader David Koresh's aides shot and killed him.

The 51-day siege involved the Branch Davidians led by Koresh. Authorities were attempting to arrest Koresh for weapons charges, but the compound was tipped off before the raid igniting a deadly shootout.

An FBI negotiator asked over a loud speaker for Koresh to lead his people out of the compound. When he refused, military vehicles began ramming the buildings and spraying tear gas. A few hours later flames were seen spreading through the compound. Only nine people escaped.

Paramount Network has announced a 2018 mini-series depicting the event on those deadly days. The six-part show “Waco” will begin in mid-April and last through June. The “Waco” TV series will star Michael Shannon and John Leguizamo.