“How many serial killers can there actually be?” Scottish Crime fiction author Alex Gray discusses the literary phenomenon of the serial killer. | BBC Scotland

"We all as a culture seem to be attracted to the psychopath." | BBC Scotland

Dr Dan Rusu discusses how murderers construct their identity after taking another person’s life, and explains why some confess to their crimes. | BBC Scotland

“I prefer the description somebody once gave me...as the gobby shop steward of crime fiction.” Val McDermid joins Professor David Wilson in conversation about her prolific contribution to crime literature. | BBC Scotland

Does everybody have a conscience - and feel guilt? | BBC Scotland

In 1970s Glasgow police believed the deaths of three women were the work of one person, dubbed the 'weekend killer'. | BBC Scotland

The 'trial of the century' in the Victorian era was that of socialite Madeleine Smith, who was accused of poisoning her illicit lover with arsenic. | BBC Scotland