SHELBY COUNTY, Tenn. -- The Shelby County Sheriff's Office charged a man with the murder of a woman and her 4-month-old baby, found stabbed in a house that was then set on fire. The Shelby County Sheriff's Office said 25-year-old Enoch Zarceno, who is the baby's father, has been arrested and charged with numerous felonies, including two counts of first-degree murder and aggravated arson. Family members said they believe he was angry about the possibility of having to pay child support. Just two weeks ago, Cook posted to a private Facebook group for single moms, asking for advice. She said...