Fire was set to cover up evidence , U.S. Navy says . Seaman August Provost 's death being investigated as homicide . Comment: Filner said he was on Camp Pendleton hours after Provost 's body was found , although no one told him of the killing . ` Body was discovered at 3:30 a.m. , during Provost 's shift on sentry duty .
Fire was set to cover up evidence , U.S. Navy says . Seaman August Provost 's death being investigated as homicide . Comment: Body was discovered at 3:30 a.m. , during Provost 's shift on sentry duty .