Alix Smith, mother of Liam, has given a brief statement, on behalf of Liam's loved ones, via Police Scotland.
Alix Smith has said:
"While we never gave up hope of finding Liam, we were realistic about the challenges facing us. Our hearts are broken."
"We would like to take this opportunity to thank everyone who has been involved in the search for Liam including members of the public who took it upon themselves to help. Thank you also to everyone who has left messages of support which have provided us with comfort at extremely difficult times."
"At this most difficult time of all, we would ask for privacy as we try to come to terms with our enormous loss."