Police said no further action will be taken against two people arrested in connection with the investigation into a teenager's death.
Human remains found in the River Taw near Sticklepath in June were confirmed as those of Taylor Charlton. He disappeared on 8 May, aged 14.
Devon and Cornwall Police said a man in his 20s and a woman in her 40s had been arrested on suspicion of murder. They are no longer being treated as suspects.
Det Insp Elaine Westerman said there was currently no indication of any third-party involvement in Taylor's death. It is not being treated as suspicious.
Police, specialist teams, divers, drones and search dogs spent weeks searching the River Taw and the surrounding estuary for Taylor.
Senior investigating officer Det Insp Elaine Westerman said: "These arrests were made as part of our commitment to fully investigating all avenues of inquiry and leaving no stone unturned in finding answers for Taylor's family."
"Following a full and thorough investigation, we are satisfied that neither of these individuals have had any involvement in Taylor's disappearance or death."
She said a file would be prepared for the coroner.
Westerman said: "Taylor's family have been updated on these developments and continue to be supported by specially-trained officers."
"Our thoughts and sympathies remain with them along with Taylor's friends and the local community."
She asked members of the public to help the force by "avoiding speculation" and by not sharing any unconfirmed information online.
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No Further Action After Missing Teenager’s Death