Just after dawn on Oct. 7, Hamas militants attacked the Supernova music festival in southern Israel, murdering at least 260 festivalgoers and taking an unknown number of hostages.
NBC News has compiled testimonials from survivors, detailed satellite imagery of the aftermath and video from the attack itself to piece together a comprehensive timeline of the deadly assault.
Watch the powerful new investigation here.
Get top local stories in DFW delivered to you every morning. >Sign up for NBC DFW's News Headlines newsletter.