FORT STEWART, Ga. - A military hearing for a soldier accused of killing his pregnant wife is set to begin at Fort Stewart in south Georgia.

Civilian authorities accused Pvt. Isaac Aguigui of using insurance money from the death of his wife, Army Sgt. Deirdre Aguigui, to buy weapons for an anti-U.S. government militia group.

The hearing is set to begin at 9 a.m. today.

Military prosecutors are expected to reveal why they believe the 21-year-old soldier killed his wife in July 2011.

The Army charged him in April with murder. A hearing officer will weigh evidence presented before advising commanders on whether to seek a court-martial for Aguigui.

Civilian prosecutors say Aguigui recruited disgruntled soldiers to commit thefts, buy weapons and even kill for him as part of a militia group.