BBC Wales Investigates S2023E02 - How Did Our Sons Become Killers?

Two boys with their lives ahead of them, but who grew up to become killers. A mother describes the moment she realised her son had attacked a stranger. Another says she's now forgiven her mentally ill son for stabbing her and killing his dad in an attack. If lessons identified had been shared, could another death have been prevented? BBC Wales Investigates.