A violent coward randomly slugged a mom in a broad daylight Bronx attack, cops said Tuesday — as the victim’s son lamented he always warned her not to go out after noon because of the neighborhood.
The disturbed creep approached 63-year-old Belkys Pena around 3 p.m. Friday as she walked along University Avenue near West 183rd Street in Morris Heights, authorities said.
The unidentified man punched Pena in the face without saying a word, knocking her unconscious and breaking her nose.
When the bleeding woman came to, she called her son, 37-year-old social worker Rey Pena…