Should we sterilise drug-addicted parents or take their kids away from them? Brandon Muir was only 23 months old when he was killed by the boyfriend of his drug-addicted mother. Robert Cunningham was yesterday convicted of culpable homicide after subjecting the Dundee toddler to more than 40 injuries. It follows cases like those of 11 week-old Caleb Ness, killed by his drug-addicted father in Edinburgh. Is it now time to consider sterilising drug-addicted parents or taking their kids away from them? Graham Stewart takes your calls, texts and emails.