HONOLULU (HawaiiNewsNow) - The FBI is looking into actions by one of Hawaii's most powerful couples and the case is expanding.
The case broke open after Honolulu Police Chief Louis Kealoha and his wife, Katherine, accused her uncle of stealing their mailbox in 2013.
The two sides were deeply involved in a bitter dispute over money.
The biggest new development in the case is that the focus of the investigation is now centered on deputy city prosecutor Katherine Kealoha, who heads the Honolulu Prosecutor's Office Career Criminal Division.
In the year since Hawaii News Now first reported the FBI Investigation was underway, the case has widened significantly. A second federal prosecutor from California is now assisting the lead prosecutor who was appointed by the Justice Department.
And multiple sources say a handful of witnesses have now testified before the federal grand jury, including Honolulu police officers.
The Kealohas are being investigated after allegations of civil rights violations and public corruption.
Hawaii News Now will take an in-depth look at the case and offer new details on the allegations in an exclusive report at 10 p.m. on KGMB and KHNL.