On the night of July 22, 2015, the Bever family home in Broken Arrow, Oklahoma, became the scene of a planned, deadly attack carried out by two older brothers. Robert, 18, and Michael, 16, allegedly armed themselves with knives and first assaulted their 13-year-old sister, Crystal, stabbing her multiple times; she escaped briefly and identified her brothers to responding officers. The brothers then turned on other family members: parents David and April Bever were stabbed dozens of times; five-year-old Victoria Bever and her seven-year-old brother Christopher were coaxed out of a bathroom and both were stabbed to death, Victoria receiving about 23 stab wounds. Twelve-year-old Daniel made a 911 call but was located and killed. A two-year-old sister was found unharmed upstairs, and two surviving sisters were later placed in state custody.

Robert and Michael fled to woods behind the house but were captured by a K9 unit. Does anyone have direct knowledge of the family or the neighborhood in 2015 that could shed light on what led up to this attack?