On a wind-swept bluff overlooking the Pacific, Robert Rivenburgh sobbed like he never had in the nearly four decades since his older brother went missing during the Vietnam War.

The remains of Marine Pfc. Richard W. Rivenburgh had finally come home, and he was buried Monday at Rosecrans National Cemetery in San Diego.

"I wasn't expecting it to impact me as much as it did," Robert Rivenburgh said after the service. "It just kind of all came back. We had the service in 1975, and the tombstone has been here for more than 30 years but now when we visit we know he's there. We know where he's at. We know he's home. Everything's good now."

Richard Rivenburgh was one of four Marines who remained missing for 37 years after a helicopter carrying them was shot down in 1975 off the Cambodian coast. Their remains were recovered from Southeast Asia in 2008 after U.S. military officials received word that scavengers had buried them and local people knew the location of the sites, the Marine Corps said.