Gatineau police are checking to see if there are any potential links between the unsolved murder of Kelly Morrisseau, and an Ottawa man charged in the murders of two sex trade workers.

Tuesday marked the seventh anniversary of the slaying of Morrisseau, who was found by a hiker in Gatineau park early on the morning of Dec. 10, 2006.

The 27-year-old aboriginal woman, who lived in Vanier, was seven months pregnant. She had been stabbed a dozen times.

Gatineau police said Tuesday they sent evidence to a Montreal lab for testing, in connection with the arrest of Marc Leduc.

The 56-year-old was arrested in Feb., and is charged with first-degree murder in the 2011 death of Leeanne Lawson, who was involved in prostitution and drugs, and the 2008 death of Pamela Kosmack, whom police believe was in the sex trade.

Gatineau police talked to Ottawa police investigators, and about two weeks later, sent off evidence for testing.

“We’re still waiting for the results in the case,” said Gatineau police Const. Pierre Lanthier.

Lanthier said tips have dwindled as the case grew older, but police are still in contact with the Morrisseau family, who are aware of the latest developments.

“They know that we’re working on the case,” said Lanthier.

It’s not the first time the Gatineau force has explored potential links with suspected killers.

After the June 2012 arrest in Winnipeg of Shawn Cameron Lamb, who is charged in the deaths of three aboriginal women, Gatineau police looked for any connections.

Twitter: @ottawasundbell