Joe ‘Ruby’ Colhoun, visited the scene of the find at Islandmore after 9am this morning.
The remains were found by workers who were lifting sand from a banking on the Foyle with a digger.
Dad Joe told Doegaldaily.com that he is relieved his son’s remains have now been found. This afternoon he was shown a top found with the remains and has identified it as David’s, he said.
“I was down there this morning and my son saw the remains. He is convinced they are David’s.
“I know it is David. I know in my heart of hearts that it’s him,” said Joe.
Joe, who buried his wife Josephine last February, said the discovery of the human remains has brought his nightmare to an end.
“We have went through hell and back for nine months. Our lives have been on hold.
“We are just so happy to have David back and I want to give a proper burial beside his mother now,” he said.
Joe added that he hoped he will get his son’s remains back on Friday so that he begin to plan for a proper funeral for his son.
Divers spent the day at the scene supported by Garda forensic officers.
The remains found have now been removed and will be sent away for DNA analysis.