(Darke County, OH)--A Richmond woman is being blamed for a Darke County crash on Thursday that has left three people, including two children, in serious condition at two different Dayton hospitals.  Investigators say Melissa Leonard of Richmond turned in front of an oncoming car on State Route 121 at Weavers – Fort Jefferson Road.  Leonard was not seriously hurt, but 24-year-old Mary Funk was Careflighted to Miami Valley.  A six-year-old girl and a two-year-old boy both went to Dayton Children’s.  Three separate medical helicopters responded to the scene.