Arrested last January for allegedly attempting to steal a political banner from a Pyongyang hotel, Otto Frederick Warmbier, a 21-year-old college student from Cincinnati, Ohio, has now spent nearly eight months locked up inside North Korea.

One of the people trying to get Warmbier freed is David Sugarman, a pro sports agent and social activist who was behind the successful #BringBaeBack campaign, which helped raise the public’s awareness of Kenneth Bae, the Lynnwood, Washington missionary arrested in 2012 for allegedly plotting to overthrow the North Korean government in a “religious coup d’etat.”