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>> reporter: before the investigation had concluded. >> before the investigation concluded. and by the way, i dont think weve really had an investigation. >> reporter: okay. >> things that have taken place so far is to discredit my son. >> reporter: the family suspects alfred may have been held captive and tortured during the time he was missing. they want forensic evidence to determine whether the drugs entered his body before or after his disappearance. and they dont believe he left the liquor...