Amelia Ava, dressed in her school uniform, went missing at 8 a.m. on Monday, June 18, 2001. Amelia's parents heard about "Uncle Alonzo," a close family member, who had a decades-long history of sexual abuse against adolescent females. Despite the fact that there was no corpse to show for it, Alonzo David was sentenced to life in prison for the kidnapping and murder of Amelia. What made him turn into a violent sexual predator in the first place? And how can you reconcile his actions with your own if he's your own flesh and blood? In " The Boy Become a Killer," Alonzo's older brother Dillon Sharkey chronicles the violent childhood and troubled adolescence that helped shape a bright and handsome little boy into one of Britain's most notorious killers, leading to one of the UK's most unusual murder trials. Sharkey also poses several terrifying questions, such as what happens if you discover a lethal sexual predator in your family. Is it possible to find out where he got his heinous crimes? And, with his release date approaching, can Alonzo David be persuaded to reveal the location of Amelia's remains? "The Boy Become a Killer," a heart-breaking blend of true crime and family memoir, reveals the true cost of keeping dark family secrets hidden.