Author of report on investigation had never heard of suspect . Investigators have not found forensic evidence linking Hernandez to the murder , Kelly says . ` ` police believe in the credibility of the statement , '' Police , Kelly says . Hernandez is expected to be charged with second degree murder , police say .
Author of book on investigation had never heard of suspect . Investigators have not uncovered forensic evidence linking Hernandez to the case , Kelly says . `` Detectives believe in the credibility of the statement , '' Police Commissioner Kelly says . Hernandez is expected to be charged with second degree murder , police say .