A Brazilian woman allegedly killed her ex-boyfriend by handing him a milkshake laced with poison. Ana Paula Velloso Fernandes, 36, is suspected of murdering at least four people - including her 21-year-old ex-boyfriend, Ryder Maheris - over a five-month period in Sao Paulo and Rio de Janeiro. Investigators claim Fernandes and her twin sister, Roberta, faked a pregnancy to pressure Ryder into staying with her. When he ended the relationship, Fernandes allegedly hatched a deadly plan: she bought