On July 24, 2008, four members of a Birmingham family were found dead in their Graselli Heights home: 13-year-old Jerome McFarland, his 11-year-old brother Justin McFarland, their mother Elizabeth McFarland Witherspoon, 34, and stepfather Derrick Witherspoon, 37. All four had been shot, and the house had been set on fire in an apparent attempt to destroy evidence.

The killings prompted a rapid investigation and the arrest of two suspects from nearby Bessemer, Shaunasty Lowe, 18, and Steven Jamal Williams, 19. Authorities say the violence grew out of a dispute that escalated into the fatal confrontation that left the family dead and the neighborhood reeling.

What additional details about the night of July 24, 2008, or the people involved might help explain how a dispute turned into such a deadly attack?