The NCRI said in the report that Fakhrizadeh was born in 1958 in the Shi’ite Muslim holy city of Qom, was a deputy defence minister and a Revolutionary Guards brigadier-general, held a nuclear engineering doctorate and taught at Iran’s University of Imam Hussein.A high-ranking Iranian source described Fakhrizadeh to Reuters in 2014 as “an asset and an expert” dedicated to Iran’s technological progress and enjoying the full support of Iranian Supreme Leader Ayatollah Ali Khamenei.The source added that Fakhrizadeh had three passports and travelled a lot, including in Asia, to obtain “the latest information” from abroad, but would not elaborate. Western security sources say Iran was long adept in obtaining nuclear materials and know-how from the international black market.
Even though most articles stress his nuclear scientist credentials, there is very little talk about how he was both a nuclear science expert and a key member of Iran's defense department.
This was only admitted after his assassination by Ayatollah Khamenei himself:
This is a tacit admission that Iran has - today - an active nuclear weapons program. The army wouldn't be involved in peaceful nuclear power research.
Those who are upset over this assassination are those who want to see Israel destroyed by an Iranian nuclear bomb.
(h/t Nevet)