The mother of Whitehorse murder suspect Michael Macpherson is asking him to turn himself in.

Yukon RCMP are still searching for Macpherson, 32, who is wanted on a charge of second degree murder in the stabbing death of Tanner Sinclair.

His mother, who didn't want to be identified by name, recorded a short video pleading with her son to give himself up.

"We've got to deal with this as quickly as we can as a family," she says in the video. "You know that I love you unconditionally. Please, please just do this, for me. You've got to do it for me and for you."

Michael Macpherson

Michael Macpherson is wanted for second-degree murder in connection with the stabbing death of Tanner Sinclair in Whitehorse last week. (submitted by RCMP)

Police say the search for Macpherson extends beyond the Yukon border to all western Canadian provinces. Border Services is also on alert. 

There are few details known to the public about what happened the night of the stabbing. Police confirm Macpherson and Sinclair knew one another.

The RCMP say Macpherson came to the Yukon in March 2014 and had no formal employment. He also has a criminal record. British Columbia court records show in 2006 he pleaded guilty to assault with a weapon and served time.

Macpherson is described as a Caucasian male, 5 foot 10 inches, 220 pounds with short brown hair and blue eyes. He has several tattoos on his chest, back and legs, including one of a hummingbird on his right forearm.

Police are also looking for a vehicle he may be driving — an older red Toyota Corolla with several dents that may have Yukon plate HHS50 attached to it.

RCMP say Macpherson is considered armed and dangerous. They ask anyone who spots him or his vehicle not to approach, but to call 911 or the nearest RCMP detachment.