Masoumeh Karbasi & Reza Avazeh were killed in a drone strike in Lebanon in October. As far as I can see nobody knew why publicly, Handala’s linking Reza to Hezbollah and their cybersecurity appears to be a first.
His children were invited to meet ‘Supreme Leader of the Islamic Revolution’ that week. https://farsi.khamenei.ir/news-content?id=58050