Speculation, imo.
Murders
are strange, interesting that Sonia's was considered so
rare, that it received attention from wide variety of LE.
Could the perp. be from a foreign background and yet still be familiar with the area?
Given recent events, ie, parliament shooting, wondering now, if SV ever volunteered in volatile countries?
http://www.cbc.ca/news/canada/toronto/nurse-s-rare-murder-pored-over-at-summit-1.890183
"
Nurse's 'rare' murder pored over at summit"
"For three long days, top criminal profilers and investigators from across North America came together in a Toronto hotel to pore over the details of the summertime murder of Orangeville, Ont., nurse Sonia Varaschin.
The three-day "investigative summit" last week was unprecedented but warranted by the "very rare" nature of the crime, Ontario Provincial Police Det.-Insp. Mark Pritchard said at a news conference Thursday".
>>snip<<
"About 25 experts met at a hotel near Toronto's Pearson International Airport last week to dissect the case "moment by moment, event by event," including visits to the three crime sites, to try to piece together a profile of the man who killed Varaschin.
In attendance were criminal profilers from the U.S. Federal Bureau of Investigation's Virginia-based behavioural analysis unit, Ontario Provincial Police and the RCMP, plus senior homicide investigators from several forces, including York Region, Toronto and Ottawa.
Also among those at the summit were several members of the OPP's behavioural sciences unit, who were involved in the case of Russell Williams, the former military commander who killed two women, attacked two others and broke into dozens of Tweed-area and Ottawa homes".