This is the seventh reported sexual assault since last August.
The girls told police they had been talking with Simpson for months over the phone, planning to meet and have sex.
Lawmakers talked about a bill Thursday that could change the distance sex offenders can liver from schools.
House Bill 278 passed the House Judiciary Committee on Wednesday.
Former Bullitt County Sheriff's Deputy Brent Hall is facing rape and sodomy charges.
Joseph Adam Mattingly faces 10 felony charges.
According to court documents, Franklin County Sheriff's deputies arrested 25-year-old Deavon Eastman Tuesday morning.
Defense attorneys said Thursday that investigators came to a conclusion by process of elimination, not fact.
According to court documents, the 21-year-old man was taken into custody by deputies with the Franklin County Sheriff's Office Monday night.
A plea of not-guilty was entered on behalf of 26-year-old Bryce Burns Tuesday morning.