Four arrested over Emma killing

Four men have been arrested in connection with the killing of Emma Caldwell in 2005. Emma Caldwell's body was found six weeks after she disappeared.
Ms Caldwell, 27, who had been working as a prostitute, disappeared from a hostel in Glasgow's south side.
Police said four men aged 31, 34, 35 and 55 were arrested following raids on properties in Bridge Street in Glasgow city centre and Duke Street.