Full statement from grieving couple
"FOR the four days our son lay in a coma we prayed and hoped for a miracle, and if he survived we didn't want him to be stigmatised by his actions in a moment of madness.
"We were also extremely concerned about the effect this would have on Andrew's cousins, close friends and fellow pupils. Sadly Andrew could not be saved and by that stage speculation as to what had befallen him had spiralled beyond our control.
"We issued a statement in response to press queries in which we did not comment on the nature of Andrew's death, but took the opportunity to pay tribute to him.
"It was not our intention to mislead; we were and remain so very distraught.
"We know all parents will understand our plight and we'd like to thank everyone who has supported us through these dark days from the bottom of our hearts."