A Columbus firefighter was arrested Wednesday on federal child pornography charges and appeared in federal court in Columbus on Thursday.
Carson A. Bigham, 23, of Lancaster allegedly possessed, distributed or received child pornography.
The U.S. Attorney's Office said investigators seized devices from a Columbus man charged with federal pornography crimes in March that revealed conversations between the man and Bigham.
Bigham allegedly used the screen name "daddy."
The conversations between the two men were sexual in nature and included discussions about engaging in sex with minors.
Bigham also allegedly received child pornography during those discussions, which depicted prepubescent minors engaged in sex acts with adults.
During the investigation, law enforcement officers learned that Bigham is employed as a Columbus firefighter. Photographs of Bigham match those sent to the Columbus man during their conversations.