A suspect in critical condition is taken to hospital after an exchange of gunfire with Special Duties Unit (SDU) officers at a public housing estate in Kowloon Bay, Hong Kong June 1, 2014. The man, whom police suspected of being connected to the fatal shooting of an air conditioning technician the night before, later died from his injuries, according to the police. Police said the man shot himself during an exchange of gunfire with officers who were investigating the death of the technician. REUTERS/Tyrone Siu (CHINA - Tags: CRIME LAW)