(Brookville, IN)--A 36-year-old Brookville man will spend the next five years behind bars after trying to convince a 13-year-old girl to exchange sexual favors for tobacco products.  Robert Marshall has pled guilty to child solicition and been sentenced to five years.  Marshall will also have to register as a sex offender following his release.  The case began earlier this year when Marshall began messaging the girl through her Facebook page and requested explicit photos.  A forensic examination of Marshall’s phone confirmed the girl’s allegations.