A man was arrested after allegedly killing his father, stepmom and her teen son inside their Vermont home earlier this week — then calling cops to report the grisly crime, authorities said. Brian Crossman Jr.

PAWLET, Vt. — Police on Friday arrested a 23-year-old man with a history of mental health issues in the shooting deaths of his father, stepmother, and stepbrother, a crime that has badly shaken this small town in western Vermont.

A New York man is facing three counts of murder after police say he shot and killed his father, stepmother and 13-year-old stepbrother last weekend in Vermont. Brian Crossman, 46, a local selectboard member;