Ambassador Chris Stevens, who was killed during a Sept. 11 attack on the U.S. consulate in Benghazi, Libya, was interred to his final resting place Friday morning at a cemetery in Grass Valley — the city where he was born. Bathed in sunshine amid the bright autumn colors of the Sierra Nevada foothills, nearly 30 family members and close friends gathered at a family plot to bid farewell to the slain emissary, said Ellen Gibson, a relative and local resident. “It was short, it was lovely and very private, and he was surrounded by his loved ones,” Gibson said. “It …