On the trail above Ke`e, I encountered this sign. I later saw copies all over the island -- in the towns, on the trails, on the beaches. I saw the man who was putting them up. He had a sadness about him that was palpable and nearly contagious, and a grim determination to keep putting up signs. The text reads: "If anyone has seen this young man, please call 801-xxx-xxxx. Dear Son, I will be in Kapa`a at your place until early Monday morning. I'd love to see you before I leave. I have cell service here. Love, Dad"