Chilling CCTV footage shows serial killer Joanna Dennehy - moments before she tried to murder two men who were out walking their dogs in Hereford.
She had gone into a local shop just up the road from where she carried out the first of her two savage attacks.
Dennehy picked her victims in Hereford totally at random, stabbing them after saying she wanted to have fun.
Both men were seriously injured, but survived.
She had already stabbed to death three other men, dumping their bodies in ditches in Cambridgeshire.