Colin David McLean Sutton is a British former Metropolitan Police detective who came to public prominence by leading the investigations on several high-profile cases such as serial killer Levi Bellfield and rapist Delroy Grant who were both subsequently convicted of their crimes and are currently serving life sentences. He worked on several high profile and difficult cases during the course of his 30-year career. These included, most famously, the case of Levi Bellfield who was initially convicted of the murders of Marsha McDonnell and Amélie…