Florida 's Department of Children and Families says it had ` ` prior involvement '' with the family . No investigation was open at the time of their deaths , it says . The two dead children have been identified as brother and sister , ages 9 and 10 . ( CNN ) -- A suspect is in federal custody on unrelated charges , they say .
Florida 's Department of Children and Families says it had ` ` prior involvement '' with the family . No investigation was open at the time of their deaths , it says . The two dead children have been identified as brother and sister , ages 9 and 10 . A suspect is in federal custody on unrelated charges , they say .