Lloyd Byfield , 48 , launched hammer and knife attack on Leighann Duffy , six-year-old . The drug dealer smashed into her flat when she did not answer his calls . Stabbed her 14 times before her 26 daughter , who tried to stop it . Court told how Byfield was ordered to be deported back to Jamaica in 2007 . Jailed in 2005 for attacking another woman with a chisel and for burglary .
Lloyd Byfield , 48 , launched hammer and knife attack on Leighann Duffy , 26 . The drug dealer smashed into her flat when she did not answer his calls . Stabbed her 14 times before her six-year-old daughter , who tried to stop it . Court told how Byfield was ordered to be deported back to Jamaica in 2007 . Jailed in 2005 for attacking another woman with a chisel and for burglary .