In this episode, the Behavioral Analysis Unit (BAU) is in a state of upheaval. Following the events of the Season 2 finale and the Season 3 premiere, the team is shorthanded:

The title "In Birth and Death" is often used as an alternative or descriptive title for of the crime drama Criminal Minds , which is officially titled " In Name and Blood ." Episode Summary: "In Name and Blood"

Smith is a particularly manipulative serial killer who uses his young son to lure women into a false sense of security before abducting and murdering them.

has gone missing (effectively leaving the team). Aaron Hotchner has been suspended. Emily Prentiss has resigned (though she later returns).