Nearly a year after the American School in Japan promised to launch a third-party investigation into sexual abuse by late former teacher Jack Moyer, victims and alumni are becoming increasingly frustrated the school's administration has yet to provide a report on the probe or offer an apology and redress.

In its latest letter emailed to alumni on April 2, the ASIJ said the investigation had not been completed yet and attributed the delay partly to having to meet demands from the victims' lawyers, who are conducting a separate investigation.

"Unfortunately, the update from ASIJ was disappointing and egregious," said Lisa Jastram, a 1974 graduate of the school who has been spearheading several different campaigns for the victims. "They seemed to be blaming the victims."