: The bombing prompts the return of legendary characters Gil Grissom , Catherine Willows , and Jim Brass to Las Vegas.
The movie provides definitive (though sometimes debated) endings for the main cast members: CSI: Immortality
: It is eventually revealed that Dalton Barron is the bomber, motivated by a personal grudge against Grissom for his role in "ruining" Lady Heather. : The bombing prompts the return of legendary
The finale centers on a catastrophic suicide bombing at the , which is owned by former CSI Catherine Willows. CSI: Immortality