Answer:it is very likely that she used a knife
Explanation:
Knife is a weapon that is easily accessible to anyone especially when they are inside the house and enraged.
Knife is a common weapon in crimes of passion that you will find that a person had stabbed another several times to take out the anger they feel at that moment.
She probably ran to the kitchen and the next thing they saw was her running back to them with a knife and stabbing them repeatedly.
