Howl at the Moon

Three recent deaths in Valley Falls have all the signs of animal attacks. However, the evidence about the sort of animal that could be responsible is inconclusive. Rumors abound that the murders might have been committed by a werewolf, given that they all occurred under the light of a full moon. The local authorities, however, aren't taking that seriously. The only connection that the three victims share is their love and patronage of a local watering hole called Ernie's Bar. Can you determine who (or what) is responsible for the deaths of these three victims? Beware: this case may get a little hairy!