Jenny Hayes, 46, was charged with three counts of murder and arson
A young couple and newborn baby were killed in the blaze at Point Cook
Forty firefighters battled the fire for an hour on Wednesday at about 3.40am
Abbey Forrest, 19 Inda Sohal, 25, and baby Ivy were engulfed in the blaze
Hayes cried throughout a court hearing in Melbourne from her jail cell