The search is intensifying this morning for 6-year-old Isabel Mercedes Celis, who vanished from her bedroom in Tucson, Arizona.
She was last seen in her room at 11pm Friday night. When her dad went to wake her up Saturday at 8am, she was gone.
Law enforcement and volunteers searched over the weekend, but there are no signs of the young girl. We're now hearing that investigators are looking into a possible entry point into isabel's bedroom.
Tucson police chief Roberto Villasenor explains to Soledad O'Brien on how an open window could be key to finding Celis.