KATY, TX --Harris County sheriff's deputies say they've found an elderly woman who'd been missing since early Wednesday. Dorothy Scott Murphy, 84, was found OK after she had been missing for hours. Authorities say she'd left the 22600 block of Indian Ridge Drive in Katy around 8:30am and no one had been able to contact her. The alert was issued because she suffers from Alzheimer's disease and had other medical ailments. Authorities did not specify where Murphy was located.