Grantanow
Surprising that the International Crminal Court never bothered to pursue Assad.
ICC can only prosecute cases that happen in member states, Syria is not a member state. However, although Israel is not a member state, Netanyahu etc are charged with offences committed in Gaza, Putin is being charged for offences committed in Ukraine.
"Palestine acceded to the Rome statute in 2015, and the ICC ruled in 2021 that it was a state, thereby extending the court’s jurisdiction to territories occupied by Israel since 1967 – Gaza and the West Bank including East Jerusalem." Guardian
"Ukraine is not a State Party to the Rome Statute, but it has twice exercised its prerogatives to accept the Court's jurisdiction over alleged crimes under the Rome Statute occurring on its territory, pursuant to article 12(3) of the Statute."
I'm not a lawyer but this is what I found in support.