Three men have been arrested on suspicion of the murder of a man in Cambridge on Sunday (10 March) morning. Cambridgeshire police were called by the ambulance service at 5.19am with reports of a stabbing in Carlton Way in Arbury. A man in his 30s, was pronounced dead at 6.10am. A post-mortem examination has not yet taken place, but police believe the man was stabbed in a targeted attack. Three men aged 19, 20, and 23 were arrested on Sunday night on suspicion of murder. They remain in custody. Det Chief Insp Katie Dounias, from the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Uni…