David Smith, 24, faces preliminary charges that include possession of child pornography and child exploitation.
ISP said he paid an HIV-positive prostitute for sex in 2015.
Fledderman was charged for patronizing a prostitute.
Randy-Wigle Stevens received 908 days of probation.
Fledderman was arrested and charged earlier this month with patronizing a prostitute.
The city of Batesville said in a news release that 60-year-old Mayor Richard Fledderman designated City Council member Gene Lambert as acting executive Wednesday.
Court documents show that back in June, Mayor Fledderman hired Wigle-Stevens to perform sex acts for $170.
When he started asking art dealers about it, he received offers ranging from $500 to $1,500.