Complex sentence: After "Carnival of Carnage" John Kickjazz left the group and was replaced for a short time by another member on "Beverly Kills 50187" named Gree-Z. After that record he then left the group and the trio has now stayed a duo.
Split into simpler sentences: After "Carnival of Carnage" John Kickjazz left the group and was replaced by Gree-Z for "Beverly Kills 50187". Afterwards, Gree-Z then left the group and the trio has now stayed a duo.