it s now the sixth state to do so. legal challenges are expected. supporters of the law hope the challenge will go to the supreme court, where roe v. wade could face a challenge. there is a desperate search tonight for a missing 4-year-old girl in houston. volunteers are now joining houston police at this hour, looking for maleah davis, who needs special medical care. her step-father says she was abducted by three men in a pickup truck after he says they were targeted on the highway. abc s maggie rulli is in texas tonight. reporter: tonight, the search for 4-year-old maleah davis intensifying outside houston. i just want to find maleah. i just want to find maleah. reporter: she requires constant care after multiple brain surgeries. maleah s step father, darion vence, says he was driving with maleah and her 2-year-old half-brother to pick up her mother at the airport when he