SANTIAGO DE COMPOSTELA, Spain — Spanish royals and political leaders joined hundreds in Santiago de Compostela’s storied cathedral Monday evening to mourn the 79 people killed in last week’s train crash, as investigators prepared to examine the train’s ‘‘black box’’ data recorders for more clues into the country’s worst rail disaster in decades.
Driver Francisco Jose Garzon Amo faces multiple counts of negligent homicide for the tragedy.
The investigation has increasingly focused on him and his failure to brake as the train hurtled into a high-risk curve.
The black box could determine whether there was a mechanical or technical failure. Specialists will start examining it Tuesday under the instruction of Judge Luis Alaez, a court spokeswoman said on condition of anonymity in keeping with court policy.
Officials said 70 people injured in the Spanish train accident remained hospitalized.
Crown Prince Felipe and his wife, Princess Letizia, and his sister, Princess Elena, attended the Mass at Santiago de Compostela’s cathedral, along with Prime Minister Mariano Rajoy.
At the end of the hourlong service, the royal members kissed and shook hands with weeping members of the victims’ families sitting in the front pews.