Doctors say they can't explain why a Dublin teen died of a massive heart attack the morning after a pre-debs dance.
Seventeen-year-old Kaelem Hainsworth collapsed at a friend's house on the Southside in November 2012, after complaining about a severe pain in his chest.
An inquest heard yesterday that no drugs or alcohol were found in his system, and there were no signs of heart disease.
A friend told the court that he'd seen other students taking drugs on the bus to the dance - but Kaelem was "anti-drugs" and would not have taken them.
Rockers Green Day paid tribute to the teenager, who was a huge fan of the band, after his friends reached out to them on Twitter in the days following his death.
