Hardeep Singh Nijjar killing: What does international law say?

If Canada proves allegations of Indian involvement, experts say killing would violate international, human rights law. https://www.aljazeera.com/news/2023/9/22/hardeep-singh-nijjar-killing-what-does-international-law-say?traffic_source=rss&feed_id=8790&_unique_id=650e243d0b88c