Warning: This article contains spoilers for 9-1-1 season 8, episode 15, "Lab Rats"The latest episode of 9-1-1 delivered one of the most devastating deaths in the show's history, but showrunner Tim Minear says it won't be the character's final appearance. 9-1-1, now in season 8, has built a reputation for blending adrenaline-filled emergencies with intimate, character-driven stories. Captain Bobby Nash, played by Peter Krause, has been an audience favorite from the start of the series, thanks to his leadership, trauma, and growth, leaving many viewers upset by Bobby's heartbreaking sacrifice in season 8, episode 15, sacrificing himself to save Chimney from a mysterious virus outbreak.