NEW : Police think mom , dad may be heading toward Mexico . Dad says he knows where he thinks they could be , wo n't say if it 's safe . ` ` Come back and be safe and be a man , '' Anthony Hauser urges wife and son . Year - old needs chemotherapy , doctors and court say .
NEW : Police think mom , son may be headed toward Mexico . Dad says he called where he thinks they could be , wo n't say if it 's Canada . `` Come back and be safe and be a family , '' Anthony Hauser urges wife and son . 13-year-old needs chemotherapy , doctors and court say .