Warning! SPOILERS ahead for the Blue Bloods series finale.Blue Bloods showrunner Kevin Wade explains why the final episode didn’t kill any Reagans. The CBS procedural explores the dynamics of New York Police Commissioner Frank Reagan (Tom Selleck) and his family, who work for the NYPD and DA Office. Along with Selleck, the cast of Blue Bloods includes Bridget Moynahan, Will Estes, Len Cariou, Vanessa Ray, and Donnie Wahlberg. Surprisingly, when the series concluded on December 13, Frank and his family were spared, despite uncertainty regarding any future projects. However, the season 14 finale did see Luis Badillo (Ian Quinlan) die from a gunshot wound.

https://screenrant.com/blue-bloods-series-finale-reagans-live-why-explained/