9. HawaiiHe went to check on a strange vehicle before disappearing.| Help Us Find Billy Oliveira
- More than 3,000 children go missing every year in Hawaii.
- One 39-year-old man in a remote area disappeared one night in 2015. He was never seen again.
It may be seen as an island paradise, but Hawaii is also a place with a high number of missing persons. In fact, more than 3,000 children go missing every year in the state. Officials say one out of every six of these is recovered by people looking at photos on the Internet.
Thirty-nine-year-old Billy Oliveira disappeared from his home in Nahiku, Hawaii the evening of July 13, 2015. He lived with his grandmother and was last seen when going outside to check out a vehicle they heard pull up to the house. He never came back