British tycoon Richard Branson urges Singapore to spare the life of a mentally disabled Malaysian facing execution, telling AFP the death penalty was a "horrible blotch" on the city-state's reputation. Nagaenthran K. Dharmalingam, convicted of trafficking a small amount of heroin into Singapore, is due to be hanged on Wednesday after more than a decade on death row. In an interview with AFP, Branson, a long-time campaigner against the death penalty, urged Singaporean President Halimah Yacob to grant Nagaenthran clemency. "I really just hope that on Wednesday evening, she does not have this young man's death on her hands," says Branson. SOUNDBITES