MUMBAI, Feb. 12 -- A 27-year-old man who had been helping a senior citizen with her daily chores has been arrested for murdering her in an apartment at Bandra Reclamation. Bandra police on Tuesday arrested the accused, identified as Sharif Ali Shamsher Ali Shaikh, for the murder of 64-year-old Rekha Ashok Khonde, who lived alone. They suspect the motive was robbery as gold jewellery worth Rs.15 lakh was found missing from Khonde's flat....