The sadistic attack on two boys aged nine and 11 by a pair of brothers of similar age has shocked and appalled in equal measure. But what background did the attackers themselves have and what turned them to such extreme violence? As the horrors of the bloody attack on two young boys in Edlington, near Doncaster, are digested, a picture is emerging of the feral, troubled upbringing of their abusers. Whichever side of the story you focus on, it makes uncomfortable reading. The young attackers grew up in a large family with a mother who left them to their own...