"Defeat Grill Holloway" is an objective in the sidequest Victims of Vault Hunters in Sir Hammerlock vs. The Son of Crawmerax.
Walkthrough[edit]
Head into the newly opened passage. Drop down to the level below and you will see a pair of legs sticking out of the ground. Go and inspect them. It is revealed these are the remains of Grill Holloway. Sparky Flynt will contact you after that.
Dialogue[edit]
Sparky Flynt: What the -- did he fall fromt he sky? Did his transit shuttle malfunction, or ... what the hell?
Sparky Flynt: Man, who the hell is killing all of my would-be assassins? Whatever, I got more. Go meet the next one.