Working with Lee Spencer White, founder of the Alamo Defenders Descendants Association, Gibson has been given permission to examine the partial skull unearthed ... of her career drawing sketches ...

The skull sectioned is a drawing by Leonardo da Vinci (1452-1519 ... shown intact on the right and then further sawn across the front on the left. To the lower left he’s drawn examples ...

"Marcos Lomas killed two parents in front of their 4-year-old son ... a photo of the woman closely matched Gibson's drawing. The skull was found in Richmond, Texas, in 2010.