heartbroken mother speaks out about the brutal murder of her baby son .
baby zayden was murdered as his family slept during a random robbery .
harley hicks , 19 , attacked the 10-month-old baby in an ice-fuelled rampage .
casey veal opened up about the pain she lives with since her son 's death .
it comes as the federal government announced a task force this week to combat the ` national ice epidemic '