http://www.journaldemontreal.com/2015/07/15/le-fiance-a-deja-evite-la-prison
A little more information on NF in this morning's Journal de Montreal, much of which is based on court proceedings regarding his 2010 arrest:
-He is deemed to suffer from hearing/learning disabilities as well as a psychiatric problem, not identified.
-Committed armed robbery with 2 underage accomplices. They scouted a passenger on a city bus and robbed the victim shortly afterward, NF apparently assaulting the victim with a firearm.
-NF's lawyer argued successfully for a reduced sentence in 2013 based on NF's lack of criminal history and apparent steps taken to improve his circumstances. Unemployed at the time of the assault, at the time of trial he was apparently gainfully self-employed, doing landscaping and snow removal work.
-In addition, he was in the process of seeking custody of his daughter, then 2 years old. I wasn't clear on whether this was full or partial custody, but it suggests that he and SH would have been separated at that time. As well, we know she had moved back in with her mother during her second pregnancy which would have been last year (so their relationship showed obvious signs of trouble on multiple occasions).
-The article also suggests significant evidence related to the murder was collected during the search of the apartment and car.
I may have missed or misinterpreted some details in translation, feel free to add, correct or clarify!