Onslow County deputies say Corporal David Rutherford was found dead in the backyard of a home on Parnell Road in Hubert on Sunday.
Deputies say Rutherford died of apparent stab wounds, but the official cause of death is pending an autopsy report.
Garzon was house-sitting for a friend in Hubert, according to deputies, who say that he and Rutherford were roommates at the air station.
Sheriff Hans Miller says an argument preceded the murder.
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