A MISSING boy last seen leaping from the Torpoint ferry on New Year's Eve may have jumped into the water for a £100 bet, police believe.
Jordan Cobb, 16, was intending to go to a New Year's Eve street party in Torpoint, after catching the ferry from Plymouth.
But he disappeared beneath the cold waters of the River Tamar at around 9pm, just yards from the shore.
Police say they are still trying to track down a group of people who may have witnessed the incident.
And they said they had turned to social media websites to help track down those who saw him jump.
Detective Inspector Nick West said: "We know that there was a discussion between the group about something – we're still waiting for some people to come forward and clarify what went on – but we understand that for some reason Jordan has given his bag to a friend, he's jumped up on to the front of the ferry and then jumped into the water.
"There is information in the public domain that suggests this is all a prank, that someone within Jordan's group has engaged with them in relation to a bet.
"We do understand that the figure of about £100 has been discussed, but that hasn't been confirmed. That's one line of inquiry that we're keeping an open mind on."
Last Thursday, specialist dive teams, the coastguard and the Ministry of Defence came together to spend the day searching for the Stoke Damerel Community College student.
Jordan's friends had previously scanned sections of the coastline from the shore in an attempt to find him, as well as bombarding social media sites with calls to keep up the search.
Devon and Cornwall Police said they maintain hope of finding the teenager alive.
DI West added: "It is still a missing persons inquiry. Obviously, we will keep all hope that Jordan is out there alive and well.
"If this is a prank that's gone wrong, he's jumped into the river and he's embarrassed by the fact he's caused all this commotion and all this activity, his friends' involvement and his family's distress.
As the Cornish Guardian went to press on Wednesday night a body was recovered from the River Tamar at Torpoint.
Police have not identified the body but said that Jordan Cobb's family were being kept informed.