(Portland, OR)  --  A registered sex offender who's also been an activist for the group called "Portland's Resistance" is facing charges of second-degree sex abuse.  Portland police say 23-year-old Micah Rhodes is accused of abusing a teenage boy.  KOIN-TV reports police only recently became aware of the sexual abuse allegations, with the accusations coming to light following the January 25th arrest of Rhodes during a protest.  Police say investigators are now looking into the possibility of a second victim.