Japan's Last Ninja

Japan's last ninja: Engineer, 63, who can hear a needle drop in the next room and kill from 20 paces is last in 500-year line of Japanese assassins
• Jinichi Kawakami is 21st head of the Ban clan, a dynasty of secret ninjas
• He began training in ancient art of ninjutsu aged six under Buddhist master
• For concentration, he would stare into a candle until he was 'inside' flame
• For hearing he would practice listening to needle dropping on wood floor
• Says he will let the art die with him because ninjas 'don't fit with modern day'
• 'We can't try out murder or poisons. Even if we can learn, we can't try it out'