(Hillsboro, OR)  --  A youth basketball coach from Hillsboro is accused of sexually abusing a teenage girl.  Authorities say 42-year-old Stevens Hyppolite is charged with abusing the girl between 2011 and 2014 when she was between 14 and 17 years old.  Police say the victim was a member of an AAU basketball team Hyppolite was coaching.  Investigators say they're trying to determine whether there are more victims.