Years prior, while campaigning, a drunk Robert Diaz struck and killed a mother and child with his car. He and McMahon used a fixer to cover it up.
The Task Force foils the plot. Following the shootout, Dembe Zuma makes a surprise return to save Red and kill Anna McMahon. President Diaz is subsequently forced to resign and faces an FBI investigation. The Identity Reveal and "The Stranger" The Blacklist 6x22
Their conversation implies a deep, lifelong friendship, leading many viewers to speculate that this man is the , contradicting earlier stories told to Liz by Dom. The Paris Cliffhanger The Blacklist finale recap: Season 6, Episode 22 Years prior, while campaigning, a drunk Robert Diaz