Dozens of people gathered in Winnipeg on Thursday to remember Tanya Nepinak, a 31-year-old woman who police believe is a victim of alleged serial killer Shawn Lamb.

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Tanya Nepinak, 31, was last seen on Sept. 13, 2011. Winnipeg police have declared her a homicide victim, though her remains have yet to be found. (Family photo)

Family members and friends held an evening vigil at Memorial Park to mark one year to the day since Nepinak went missing.

Nepinak was last seen on Sept. 13, 2011, leaving her home on Sherbrook Street. She told her mother she was going to a pizza restaurant nearby, family members have said.

Then in June, Winnipeg police charged Shawn Lamb, 52, with three counts of second-degree murder in connection with the deaths of Nepinak, Carolyn Sinclair, 25, and Lorna Blacksmith, 18.

Nepinak's body has never been found, but police believe she is dead. The remains of Blacksmith and Sinclair have been recovered.

Then in August, police announced that they have reason to believe Nepinak's remains may be buried at the Brady Road landfill.

A search for her remains has yet to be launched. Family members and friends say they want that search to begin before winter begins.

Nepinak's son and daughter were in attendance at Thursday's vigil, as were First Nation leaders like Grand Chief Derek Nepinak of the Assembly of Manitoba Chiefs.