Fenton Hogan , 34 , convicted of the manslaughter of Kelly Emery , two . Gave him heroin substitute to 'knock him out ' , so she could smoke crack . Blood samples taken from the child showed he had as much of the drug on his system as an adult on methadone maintenance therapy . Tests revealed he had ingested the drug on at least two other occasions .
Kelly Emery , 34 , convicted of the manslaughter of Fenton Hogan , two . Gave him heroin substitute to 'knock him out ' , so she could smoke crack . Blood samples taken from the child showed he had as much of the drug on his system as an adult on methadone maintenance therapy . Tests revealed he had ingested the drug on at least two other occasions .