Seoul – A South Korean judge who more than doubled the former first lady's prison sentence last month was found dead on Wednesday, police said. Shin Jong-o was "found unconscious around 1:00 a.m. ... at the Seoul High Court building," an investigator at Seocho district police station said. Shin was taken to hospital and pronounced dead, he said, adding: "There is no sign of foul play in the death." Local media reported that Shin had left a suicide note, but the investigator said there was none. Last month, Shin presided over 53-year-old Kim Keon Hee's appeal trial, finding her guilty of stock manipulation and bribery, and increasing her sentence to four years from 20 months. The heavier sentence came after her acquittal by a lower court on the stock manipulation charge was overturned.…