ACAPULCO, Mexico --A 14-year-old boy was detained after allegedly killing a 4-year-old girl because her father made fun of his acne, Mexican prosecutors said Monday. Yurani Yuliec Garcia Organes was killed on March 16 in the Pacific resort town of Zihuatanejo, where the victim and her father lived just a few yards from the boy's house. Authorities said the boy, who was detained Saturday, told police the girl's father had called him "graniento," or "zit-face."