TORONTO - A former Montreal professor who gunned down four academics at his university 22 years ago has lost his bid for temporary prison absences.

A Federal Court judge said there was no reason to overturn a decision by the Parole Board of Canada that Valery Fabrikant still poses a risk.

"The board and appeal division made findings of fact which were supported by the evidence on the record," Judge Daniele Tremblay-Lamer said in her ruling.

"The decisions fall within the range of possible, acceptable and defensible outcomes."

Fabrikant, 76, who is serving a life sentence for murder in Quebec's Archambault Institution, sought judicial review of the decision nixing his 2014 request for either an unescorted temporary absence or an escorted temporary absence to visit his family.

In rejecting the request, the parole board said he represented an "undue risk to society."