"Hundreds of shoppers" may have witnessed double fatal stabbing in city centre as police quiz 23-year-old man over attack

'Hundreds of shoppers' may have witnessed double fatal stabbing in city centre as police quiz 23-year-old man over attackTwo men in their 30s were stabbed in the centre of the city last night By Paul Milligan and Anthony Bond PUBLISHED: 20:06 GMT, 11 January 2013 | UPDATED: 12:03 GMT, 12 January 2013 Hundreds of shoppers may have witnessed a double fatal stabbing in Birmingham city centre last night, police have said. Two men in their 30s were stabbed in the centre of the city just before 6pm last night