Kasey survives because the only time a desk or car door protects you from a hail of bullets is in a Hollywood movie or TV show.
The kid will help save John's life. Then John Dutton gets a new trackhoe to dig a huge hole in a remote section of the ranch to bury the scores of dead bodies he and Rip are gonna pile up.
After he kills a bunch of folks, he's gonna grudge phuck the hot guvner lady on last time before he slits her throat.