**UPDATE: The Calgary Police Service confirmed Thom's body was found in an alleyway in Marlborough Park on January 4, 2018**

Members of the Calgary Police Service are asking for help from the public as they continue to investigate the disappearance of a 21-year-old woman who was last seen in mid-December.

According to police, Shianne Kim Thom’s last known whereabouts were outside her home in the northwest neighbourhood of Silver Springs at approximately 10:30 p.m. on the night of December 18.

Investigators say Thom has undisclosed medical conditions that required medication.

Thom is described as:

  • Being approximately 165 cm ( 5’5”) tall
  • Having a slender build
  • Having long black hair
  • Having brown eyes

On the evening of December 18, Thom was wearing a black shirt, black leggings and a black TNA jacket with fur trim.

Anyone with information regarding Thom’s whereabouts is asked to contact the Calgary Police Service at 403-266-1234 or anonymous tips may be submitted to Crime Stoppers.