Portuguese President Marcelo Rebelo de Sousa (right), accompanied by the Mayor of Lisbon, Carlos Moedas, and Prime Minister Luis Montenegro, visit the scene of the accident to lay flowers in memory of the victims.MIGUEL A. LOPES (EFE) Two days after the derailment of Lisbon's second-oldest funicular, details of the nationality of the victims have been cleared up, but the cause of the worst accident in the history of the capital's century-old cable railways is yet to be established.