Italy on Friday started expelling European Union citizens considered a threat to society. The move came amid a crime wave involving many immigrants from new EU member Romania – and after a deadly assault on a navy officer’s wife that shocked the nation.

Giovanna Reggiani, 47, died Thursday night after two days in a coma. Her autopsy was performed on Friday. The alleged aggressor, a 24-year-old Romanian gypsy (Roma) named Nicolae Romolus Mailat, was arrested on suspicion of homicide and robbery. A hearing Friday is expected to charge him with murder and robbery.

Reggiani suffered “massive” head injuries consistent with blows from a blunt object such as a rock, police said.