Police: 6 students in classroom before Wyo. attack

CASPER, Wyo. (AP) -- Only a handful of students were in a Wyoming community college classroom when a man barged in with a bow and arrow and two knives, and killed the instructor and then himself.

Casper police spokesman Justin Smith says authorities believe "around six" students were in the Casper College computer science class Friday morning when 25-year-old Christopher Krumm, of Vernon, Conn., entered and attacked his father, the instructor.

Casper Police Chief Chris Walsh says Christopher Krumm had first fatally stabbed his father's live-in girlfriend, 42-year-old Heidi Arnold, at the couple's home about two miles away.

Christopher Krumm then went to the college and shot his father, 56-year-old James Krumm, in the head with the high-powered bow and arrow before stabbing himself with a large knife.