SAN DIEGO -- The investigation into the killing of a seaman will continue even though the suspect committed suicide in San Diego County, the U.S. Navy said.

The military owes answers to the family of 29-year-old Seaman August Provost of Houston, who was shot in a Camp Pendleton guard shack on June 30, Navy spokesman Brian O'Rourke said. The shack also was set on fire.

According to the family, Provost may have been killed because he was gay, though the Navy has said there is no evidence to support that claim.

Petty Officer Jonathan Campos was charged last month with killing Provost, but the 32-year-old Lancaster man suffocated Friday at Camp Pendleton after toilet paper was stuffed in his mouth.

Campos did not target Provost for being gay and planned to commit several crimes on base, the Navy added.