Family and friends packed Holy Spirit Church in Fairfield -- where they remembered the life of Phuong Le.
The 25-year-old from Suisun City was last seen alive last month at a Barnes and Noble bookstore.
Her body was found two weeks later in rural Napa County. Fairfield police have asked for help from the FBI, to solve Le's death.
Anyone with information about the case is asked to call the Fairfield Police Department at (707) 644-7867 or Crimestoppers at (707) 428-7600.