This is from Sabah, i.e. leaks from the Turkish government:
It publishes the names and personal details about the three persons that were supervising the case and writes that the body of Khashoggi was put in 5 suitcases and transported to the house of the consul.
Turkish: https://www.sabah.com.tr/galeri/turkiye/iste-cesedi-yok-eden-cellatlar
The article offers interesting info.
If murder was the primary goal, they did not need so many potential loose lips.
An IED or street assassination would be much more effective and private.
They only ever needed to copy Israeli and Russian tactics.