MADRID (Reuters) - A Moroccan suspected of direct involvement in the 2004 Madrid train bombings which killed 191 people was arrested on Sunday in Rabat, a judicial source in Spain familiar with the case said on Monday. Abdelilah Hriz, 29, will be tried in his home country for his suspected part in Europe's deadliest Islamist attack, the first time Morocco has agreed to try one of its citizens for crimes allegedly committed abroad, said the source. Spanish Judge Juan Del Olmo recently traveled to Morocco to question Hriz and take DNA samples, the Moroccan state news agency MAP said last...