The F.B.I. is now involved in the search for a Kentucky mother suspected of kidnapping her son and killing his social worker.
A federal judge issued a warrant Thursday for Renee Terrell and her boyfriend, Christopher Luttrell.
They're suspected of snatching 9 month old Saige Terrell and suspected in the death of 67 year old Boni Frederick, whose beaten body was found in Terrell's Henderson home Monday.
Police say they've received more than 150 tips.