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HONOLULU -- The man accused of killing Ivy Harris in Hawaii last month will now be prosecuted by a military court.

Investigators believe 38-year-old Nathaniel Cosby, a U.S. Marine, killed Harris while she was celebrating her 29th birthday.

More: Arrest made in Hawaii murder of Portland woman

Experts say a court martial offers an advantage to prosecutors.

The military requires just two thirds of jurors to agree on a conviction, unlike civilian courts that need a unanimous verdict.

Background: Portland woman missing in Hawaii found dead

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