Park first came to the United States in 1900 with Yi Gang , fifth son of Emperor Gojong ; the two studied together at Roanoke College in Salem , Virginia . After his graduation , Park established a mining school in his homeland , but soon returned to North America , where he first went to Mexico in August 1905 before coming to Colorado in January 1906 . He rose to prominence as a local community leader there along with Yun Byeong-gu and his nephew Pak Yong-man , helping to organise Denver-area Koreans for the Korean independence movement . He hoped to campaign for Korea 's freedom at the 1908 Democratic National Convention , but was killed under mysterious circumstances in a suspected assassination in 1907 and buried in an unmarked grave at Denver 's Riverside Cemetery , where he lay forgotten for almost a century
1908 Democratic National Convention
1908 Democratic National Convention
Park Hee-byung