A mother is accused of killing her 6-year-old daughter by stabbing her more than 20 times inside her Florida home, where they were both found "covered in blood," according to court documents. An investigation revealed April Oliva, 40, fatally attacked her daughter, Valerie, with a kitchen knife at their house in Milton, located in the Florida Panhandle, the evening of Tuesday, February 24, an arrest report obtained by Us Weekly says.