A missing teenager lay dead in his own mother's garden without being discovered, an inquest heard.
Miller Redpath's remains were found in the overgrown garden of a house in Wenhaston, Suffolk, despite a nationwide search for the 17-year-old.
An inquest in to his death heard his body was not spotted by his mother or police officers, who made searches of the garden.
Redpath vanished in August 2014, shortly after failing to pick up his A-level results from Langley School in Loddon, Norfolk, where he was a student. His remains were finally discovered in late October, last year.
It came after a large campaign appealing for information on his whereabouts, which spread across social media and even reached overseas.
Coroner Peter Dean admitted there were "unanswerable questions" surrounding the teenager's death, which related to the length of time until the discovery.
No broken bones or other injuries were found on his body, leading to a verdict of unascertained cause of death.
"Although clearly we have evidence that the body had been there some considerable time, there is still uncertainty over the exact circumstances over which Miller came by his death," Dean said.
"The post-mortem was unable to give a definitive cause of death so sadly there remain unanswered and unanswerable questions. There is no evidence to suggest foul play or the involvement of any other person."