The 50-year-old man is suspected of "attacking his mother with stab wounds in the area of his abdomen and neck", having injured the father who tried to stop the assaults.
PSP detained two men on suspicion of domestic violence in Grande Lisboa. In Póvoa de Santa Iria, a 50-year-old man will have assaulted his parents with a knife. In Parede, another 37-year-old suspect, will have assaulted and threatened his partner.