The body found in the River Foyle near Porthall this week has been identified as that of David Colhoun.
Gardai confirmed last evening that following consultations with State Pathologist Dr Marie Cassidy, they are satisfied the remains are those of the 22 year old.
More DNA tests will now take place before the remains are released to the family tomorrow afternoon.
Funeral mass will then take place on Sunday morning at 11 o clock in Murlog, Lifford.
David will be buried in St Johnstone with his mother.