Hong Kong police have frozen HK$30 million (US$3.8 million) held in the bank account of a 36-year-old man who was arrested on suspicion of theft after he allegedly refused to split a winning Mark Six jackpot with his colleagues.The arrest was made on Friday after a 53-year-old man reported to police on Wednesday that he was one of 15 colleagues who had chipped in to buy the winning ticket for the draw last week, according to a source.The group reportedly included some staff members of the Food...