Three people are dead, including the suspect who apparently committed suicide, after an attack in Casper, Wyo., according to the Casper Tribune.

One victim and the suspect, both men, were found dead in a classroom in the physical science building at Casper College, while the other victim, a woman, was found about two miles away, reported the AP. The suspect is not believed to have been a student at the two-year community college.

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Rumors have circulated that the attacks were carried out using a bow and arrow, but police Chief Chris Walsk would only say an “edged weapon” was involved. One girl told a pair of freshman that she was in the room where the attack occurred and claimed a student shot a professor with a bow and arrow before stabbing him with something.

So far, police have said the motive is not clear but they believe the three individuals knew each other. After the attacks, officials locked down the school, although that has since been lifted.

[Image: Casper, Wyoming. Andrew Farkas on Wikimedia Commons, Creative Commons licensed]