“Family Massacre” is a gripping and powerful exploration of some of the most ruthless murders ever committed. This series follows the true and gruesome tales of the unthinkable: multiple members of the same family slain in cold blood. Each episode hears from friends and surviving relatives, those people closest to the family that were massacred, while also detailing the work of the dedicated investigators and prosecutors tasked with finding their killer and bringing them to justice. Through firsthand accounts, archival footage and cinematic recreations, the twists and turns of the investigation unfold and delve deeper into who could have committed such a shocking crime and just how they were caught and made to answer for it.