That if you trust Saudis official media.
In all cases, Saudi will have to share a report that dehumanizes the murdered ppl. You cannot just kill without citing reasons as to why. For the western media, they include words such as ALqaida and ISIS. Needless to say, they don't have to provide any rationale for their Saudis citizens, since they ultimately have the god power and the monarchy.
A friend of mine, went to Saudi for a job. He was let go just because he tweeted stuff that criticizes the Saudi government and their involvement in our country. And he was lucky he was detained!