police are hunting for kellie cherie phillips , 38 , and jondrew megil lachaux , a 39-year-old ex-convict , after tying the couple to a case of horrific child neglect .
but he stressed that police were worried about the welfare of the five children - a 9-year-old girl and four boys ranging in age from 1 to 8 years old - who were believed to be with them .
the 17-year-old was taken into custody wednesday , after police were alerted by hospital officials to the condition of the 4-month-old .