A MAINLAND gunman intent on bank robbery after his family was ruined by last year's Guangdong floods was yesterday jailed for 14 years. Labourer Lau Kin-chung, 23, who opened fire in a Dao Heng Bank branch, Wan Chai, last year, was caught two months later in Kowloon, the High Court heard. After he dropped his loaded pistol, he told the police he was planning a robbery before his visa ran out. Yeung Kin-kong, 32, a newspaper seller, arrested with Lau, confessed to a raid in September 1993, when he had threatened to blow a cashier's head off before taking $22,000 from the First Pacific Bank, Taikoo Shing. The court heard Lau came from Guangzhou where his family had been hit by last year's deluge. Mr Justice Chan jailed Lau for 14 years after he admitted conspiracy to rob, attempted robbery and two counts of firearm possession. Yeung was sentenced to 11 years after pleading guilty to robbery, attempted robbery and firearm possession.