Three days after Kamlesh Tiwari, an Uttar Pradesh politician, was murdered at his residence in Lucknow, the police have yet to arrest either of the men suspected of the crime. The suspects have left behind a large evidence trail, including blood-stained clothes and knife recovered from a hotel room the killers booked using real names and addresses, close to the victim's house in the Khurshed Bagh neighbourhood of the city. They were also caught on CCTV cameras - outside Mr Tiwari's home and at their hotel - and left behind a box of sweets, with an address printed on it, purchased from a confectionery in Surat in Gujarat.