During an afternoon news conference today, Houston Police investigators said Mona Yvette Nelson, the woman charged with capital murder in the death of 12-year-old Jonathan Foster, may be a child serial killer. Officers said they are investigating whether Nelson may be involved in the deaths of other children. HPD Homicide Detective Michael Miller described the 44-year-old Nelson as “soulless,” and said the woman had shown an “absolute lack of remorse” for the killing. “I was one of the detectives to interview Mona Nelson, and I can tell you that she is a cold, soulless murderer who showed an absolute lack...