The Seattle Police department has just released a surveillance video of a man they're describing as a "person of interest" in the fatal South Park stabbing of Teresa Butz, 39.

From the police press release:

Detectives have uncovered surveillance video of a man that they are now calling a ‘person of interest’. Detectives say that the identity of the man is unknown and they need your assistance to identify him. At this point in the investigation, he is being sought for questioning only. His hair may be shorter than depicted in the attached video. He may or may not still have the brown and white pit bull with him. Detectives believe that the man may frequent South Seattle, as well as Auburn and Federal Way.

Detectives have previously released a sketch of the person they believe responsible for the crime. The suspect is described as a black male, 20-30 years old, 5’10, with a medium brown complexion. Anyone with information regarding this individual is urged to call the Seattle Police Homicide tip-line at 206 233-5000. Those wishing to remain anonymous are encouraged to call Crime Stoppers at 1-800 222-TIPS (8477) or text TIP486 with your information to CRIMES (274637).