EL DORADO, Kan. — The reward has been doubled for information on a cold case investigation involving a boy who disappeared 15 years ago.
Adam Herrman was 11 years old when he disappeared in Towanda in May 1999. Authorities learned he was missing in 2008 when his adoptive sister came forward.
According to his foster parents, Doug and Valerie Herman, the boy ran away in 1999. After several searches and still no sign of Adam, authorities began treating the case as a possible death investigation. His foster parents became suspects.
Prosecutors later charged the Herrmans with felony theft for collecting adoption subsidies for several years after he disappeared. They were convicted in 2011.
In December, an anonymous donor came forward to offer a $50,000 cash reward for information that led to the location of Herrman, and an arrest and conviction in the case. Today, the Butler County Sheriff's Office announced that the anonymous donor has doubled the reward to $100,000.
Butler County Sheriff Kelly Herzet said several tips have been called in since the reward was increased in December, and that the investigation is still active.
Anyone with information is asked to call the Butler County Sheriff's Office at (316) 322-4257 or Crime Tip[s 1-866-484-5924.