Wyo. Bow and Arrow Attack: Perpetrator was the son of college professor killed, say police

James Krumm and Heidi Arnold
James Krumm and Heidi Arnold were both allegedly killed by Krumm's son, Christopher, who also killed himself

(CBS/AP) - The man who police say perpetrated a bow and arrow attack on a professor at Wyoming's Casper College was the victim's son.

Pictures: Wyoming college attack leaves 3 dead

Police in Casper, Wyo., say Christopher Krumm, 25, shot an arrow into the head of his father, James Krumm, 56 with a high-powered bow Friday while his father was teaching a computer science class at Casper College.

James Krumm managed to wrestle with his son and gave time for about six students to flee the classroom. Authorities say both men died after Christopher Krumm stabbed himself and then his father.

Before the classroom attack, police say Christopher Krumm fatally stabbed his father's live-in girlfriend, Heidi Arnold, 42, at the home she shared with James Krumm about two miles from campus.

Mickie Goodro, of Twin Falls, Idaho, a friend of James Krumm and Arnold, told the Casper Star-Tribune that Christopher Krumm was in her calculus class when she taught at Casper College. Krumm graduated from Natrona County High School in Casper in 2005 and studied electrical engineering at Colorado School of Mines, the newspaper reported.

Christopher Krumm's previous addresses include one in the western Massachusetts city of Springfield and others in the Colorado cities of Golden, Fort Collins and Lakewood.

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