On the night of July 22, 2015, a massacre in a Broken Arrow, Oklahoma home left five members of the Bever family dead. April Bever, 44, and her husband were among those killed when two of their sons attacked family members inside the house with knives. The dispatcher received a brief plea for help on a 911 call before the line went dead; officers who entered the home found five family members stabbed multiple times. Two daughters survived but were seriously injured.

Two brothers, then 18-year-old Robert Bever and 16-year-old Michael Bever, were taken into custody soon after the killings. Reports describe the brothers as having planned the assault and as idolizing serial killers. The surviving sisters began recovery from severe physical and emotional injuries.

Did anyone in the Broken Arrow area know the Bever family or have information about what the brothers were doing in the months before July 22, 2015?