not sure if posted yet, passenger Mojtaba Abbasnezhad listed as PhD student at U of Toronto. According to his FB graduated there in Electrical Engineering. Worked for a company in Dubai as a "digital engineer" called SAMIM Group until April 2019. Seems a spoofy company.
https://english.alarabiya.net/en/News/middle-east/2020/01/08/Passenger-on-Ukrainian-plane-tweets-forgive-me-hours-before-deadly-crash-in-Iran.html
More info on Canadians killed here. Many young but also Profs
Article also says
“The flight was a popular transit route for Canadians traveling to Iran, in the absence of direct flights, and carried many students and academics heading home from the holidays. Canada broke off diplomatic relations with Iran in 2012.”
https://canoe.com/news/national/canadians-killed-in-iran-plan-crash-include-university-profs-students