A teenage boy is snatched as he walks up the road, minutes from his own house, and beaten to death with a hammer; two psychiatric patients are stabbed to death in their sheltered accommodation; a young girl is fatally stabbed in her own bedroom by a neighbour she hardly knows; a man is beaten to death in an apparent gangland feud. Bereavement under any circumstance is devastating, but when the cause is murder, grief takes on an extra dimension. Those...