Ottawa Police Service have released a sketch of a man wanted for questioning in connection to the murder of retired judge Alban Garon, his wife and an elderly friend on June 30, 2007.

Police discovered the bodies of Garon, a retired chief justice of the Tax Court of Canada; his wife Raymonde and Marie-Claire Beniskos inside the Garons' 10th-floor residence in the high-security Riviera condo complex near the Rideau River.

Police are now asking the public for assistance in identifying a man featured in a composite sketch they have released.

"Investigators have been unable to locate this person and believe he may be able to assist in providing information concerning the triple homicide," says a press release by Ottawa Police Service.

The man was seen in the elevator at 1510 Riverside Drive on Friday, June 29, 2007 between 10:00 a.m. and 11:00 a.m., say police.

He is described as a white male in his early 40s, about five foot eight, and weighing approximately 180 pounds.

The man is also described as having short black hair, with some grey, and a broad nose. At the time, the man was clean-shaven and wearing a white short-sleeve shirt with blue vertical stripes and dark pants.

The building is guarded by security 24 hours a day and is also covered by security cameras.

In the days following the murders, Ottawa Police Staff-Sgt. Monique Perras said investigators believed the homicides occurred on Friday morning.

She said one or more people may have been involved in suspicious activities in or around the building on the Wednesday or Thursday before the murders.

Garon was appointed judge of the Tax Court of Canada in September 1988, associate chief judge in February 1999 and chief judge in February 2000. He was chief justice of the Tax Court of Canada from July 2003 until he retired in November 2004.

Before serving as a judge, Garon taught at the University of Ottawa law school and worked at Justice Canada.

Anyone with information should contact Ottawa Police Service Major Crime Section tips at (613) 236-1222, extension 5477, or email info@ottawapolice.ca.