BEND, OR -- A La Pine couple is facing trespassing and assault charges following an incident Wednesday night on Century Drive. Police say 23 year old Dakota Pyatt and 19 year old Jessica Sunderman were walking their pit bull and trespassed on private property. When confronted by a woman property owner, Sunderman walked further onto the property and argued and attacked the woman. A second man on the property tried to intervene. Pyatt began arguing with him and released the pit bull who attacked the man. The man was armed and shot and killed the dog. Pyatt and Sunderman fled the scene with the dog in the truck. The couple was located by deputies and cited. The man property owner was determined to have used his weapon in self-defense. Police say alcohol was a factor in the incident.