GREAT FALLS, Mont. -

A 20-year-old Kalispell man is charged with sexual abuse of children after prosecutors say he talked a 12-year-old Great Falls girl into sending him nude photos and then used them to threaten her.
    
Michael Selders made an initial appearance in District Court in Great Falls on Thursday. His bond was set at $100,000.
    
The Great Falls Tribune reports (http://gftrib.com/1onhtl4 ) Cascade County sheriff's detectives obtained access to the girl's Facebook account while investigating another sex crime. Court records found that Selders exchanged hundreds of messages with the girl in May, including asking her for nude photographs. Prosecutors say he then threatened to post them online if she didn't do what he wanted.
    
Charging documents say Selders asked a detective posing as the girl if she could travel to Kalispell.