(Portland, OR)  --  The woman who was convicted of killing two young Forest Grove girls in a hit-and-run is now in the custody of immigration officials.  Nineteen-year-old Cinthya Garcia-Cisneros was found guilty of striking and killing six-year-old Anna Deiter-Eckerdt and her eleven-year-old sister, Abigail Robinson, last October.  Garcia-Cisneros was sentenced last week to three years of probation and 250 hours of community service.  She came to the U.S. from Mexico as an undocumented immigrant, and is being detained in Tacoma while she awaits a hearing before an immigration judge.