Joseph Devaney and Kieron Rolstron stormed into the house in Chorley . Rolstron , 7 , threatened to stab John and Emma Evans with a knife . Devaney , 23 , slashed terrier Cookie across the head during the attack . The court heard the victims ' daughter , 22 , was asleep upstairs at the time .
Joseph Devaney and Kieron Rolstron stormed into the house in Chorley . Rolstron , 22 , threatened to stab John and Emma Evans with a knife . Devaney , 23 , slashed terrier Cookie across the head during the attack . The court heard the victims ' daughter , 7 , was asleep upstairs at the time .