(CNN) -- A U.S. Marine accused of hazing a fellow Marine who later committed suicide in Afghanistan has been sentenced to 30 days in jail and a reduction in rank at a court-martial in Hawaii. Lance Cpl. Jacob D. Jacoby pleaded guilty to assaulting Lance Cpl. Harry Lew in April after Lew fell asleep while on watch after first arriving in Afghanistan. Charges also were filed against Sgt. Benjamin E. Johns and Lance Cpl. Carlos Orozco III, according to a Marine statement. They will face courts-martial later this year. "It has been a bad tragedy for us and (we) never can be able to repair our broken heart," said Lew's father, Allen, to CNN affiliate KHON in Honolulu. "We just couldn't believe their own peers could do something like that to their own people."
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The case involves the suicide of a Marine allegedly berated and beaten by peers
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The Marine had fallen asleep while on watch in Afghanistan
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The dead Marine was the nephew of U.S. Rep. Judy Chu of California
The case drew national attention when Rep. Judy Chu, @placeholder, the aunt of the Marine who killed himself, told a congressional committee about it in September.