An abductor who tried to blame an accomplice still at large for kidnapping an aspiring actor was jailed yesterday for 15 years and eight months for his 'instrumental' role. Cleaning worker Cheng Ka-ki, 23, was found guilty in the Court of First Instance of kidnapping and robbing Kwok Chi-ho. Cheng had testified that his role in the crimes was nothing but minor, and that a man called 'Ah Sai' was the prime mover. Cheng had earlier pleaded guilty to nine charges of obtaining property by deception and six of theft, for using bank and credit cards belonging to Mr Kwok. Mr Kwok, 22, was lured to Cheung Chau on September 8, 1997, by Cheng's bogus offer of a role in a movie. He followed Cheng to a bungalow only to be seized by three men. Mr Kwok was tied up, blindfolded and forced to sign an IOU for $3.5 million. Cheng used the victim's bank and credit cards to buy various luxury goods on September 9 and 10. He also withdrew $30,000 from Kwok's bank account. Mr Kwok escaped on September 10 when two of his captors, Leung Man-fai and Liu Wan-fei, went to play video games. Madam Justice Clare-Marie Beeson said Cheng played an instrumental role and was the main organiser of the kidnapping. 'I have no doubt at all the defendant was going to get the major share of whatever money was going to be gained,' she said. Teenagers Leung and Liu are serving eight-year terms for kidnapping and robbery.