A black metal band that Joan listened to.
Their members use fake names and hid their faces.
The band used a fake address and had four or five albums and had a very dedicated cult following that had even created a cult made up of the most dedicated fans.
There manager has gone through a ritual, that involved sacrificing him then resurrecting him and which worked out badly for him.
When they played in Atlanta they kidnapped Joan in the hopes that Percival would help them fix their manager. Instead of just asking Percival. Like a normal person.
The singer was shot and killed by John after their show when they arrived at Percivals house. The drummer, bass player and guitar player were bound and taken to as we tracked joans phone to Mexico.
The drummer and guitar player were dropped off on the side of the road far apart, on in a swampy area, the other down in ravine filled with a shallow creek.