According to the backinfo I got, the teenager who died carbonized on top of the train was 15 years old and was from the village of Brusturoasa Cuchinis in Romania.
Eye witnesses reported he was accompanied by a friend and wanted to take a selfie with the pigeons. He climbed the train and closed a circuit, creating an electric arc of 25,000 volt that consumed him.
The firemen arrived and put out the flames, but the paramedics declared the boy dead.
Props to Best Gore member @drowningdoom for the video: