The New York Times has an article about the assassination of Fadi al-Batsh in Malaysia, saying that it was a Mossad operation meant to hurt Hamas attempts at obtaining advanced weapons systems, especially drones. It also says that Batsh may have been working to obtain illegal weapons shipments from North Korea.
I noticed the article says that Batsh used to say that he was almost killed when Israel targeted his uncle's house in 2014. I remember the incident, and it was a classic case of a family's home almost certainly being used as a command and control center for Hamas.
Six of the al-Batsh family members killed in that one raid were members of Hamas.
Nahed Na’im al-Batsh. 41 , Qassam commander
Bahaa Majed al-Batsh, 28
Ahmad Nu’man al-Batsh, 27
Jalal Majed al-Batsh, 26
Zakariya Alaa Subhi al-Batsh
Yihya 'Alaa al-Batsh, 18
The uncle Taysir who owned the house was a Hamas police chief as well. (There was at least one other al-Batsh home targeted by Israel where the terrorist was killed along with his human shield family. )