How do mark's aunt and uncle feel about him killing mr griffin?

Mark's aunt and uncle are deeply troubled by his actions in killing Mr. Griffin. They express a mix of shock, disappointment, and concern for both Mark's well-being and the consequences of his crime. Their feelings reflect a sense of betrayal, as they struggle to reconcile the Mark they know with the violent act he has committed. Ultimately, their reaction highlights the moral and emotional turmoil surrounding the situation.