Haven’t seen any pics, but from the name I’m guessing she’s another “White-Hispanic”, or something like that. Hard to tell these days... what with so many being 1/32nd this and 1/16th that, and all those high cheekbones.
She's Zimmerman's cousin on his Peruvian mother's side.
“Witness #9 – Christina Meza, Cousin of George Zimmerman, aka Christina Johnson, Daughter of “Mike” Luis Miguel Meza, who is the brother to Gladys (Georges Mom).”