Police continue to investigate the disappearance of 5-year-old Andrew "AJ" Freund. The child was reported missing Thursday morning. His parents have said he last was seen about 9 p.m. Wednesday. Members of the FBI specializing in missing children and the Crystal Lake Police Department are investigating. The Illinois Department of Children and Family Services has taken custody of Andrew's younger brother. The boy's father, Andrew "Drew" Freund, left the family home in the zero to 100 block of Dole Avenue with police Saturday afternoon. About 12:30 p.m.