The Peterborough ditch murders were a series of murders which took place in Cambridgeshire, England, in March 2013. All three victims were male and died from stab wounds. Their bodies were discovered dumped in ditches outside Peterborough. In Hereford, two other men were stabbed, but survived. The perpetrator was Joanna Christine Dennehy, a Cambridgeshire woman, who was later sentenced to life imprisonment with a whole life order.