(Minneapolis, MN)  --  A Minneapolis police officer accused of sexual misconduct with several teenage girls has been charged with six felonies in Hennepin County.  Police say 32-year-old Bradley Schnickel of Andover initiated off-duty sexual encounters with girls between the ages of 12 and 14 via social media.  Prosecutors allege there are at least four victims.  Schnickel is also accused of trying to persuade the girls to change their stories.  He's been ordered to have no contact with girls, including his two daughters.