Erik Jeske is accused of sexually assaulting an 8-year-old girl in her Penrose home in 2010.
A few days later, Jeske allegedly threatened the girl's 15-year-old stepbrother with a knife during an unrelated altercation at Jeske's home.
The incidents were not reported to the Fremont County Sheriff's Office until July 2011.
According to the Canon City Daily Record, Jeske was deployed to Afghanistan while the investigation continued and an arrest warrant was obtained Sept. 12.
Upon Jeske's return, he was arrested by Fort Carson police on Dec. 13.
(Copyright 2012 by The Associated Press. All Rights Reserved.)