[s5e4] Unchained Here

: These "Mafia Cops" were on the payroll of a mob boss, carrying out hits in exchange for payment.

This episode is widely recognized as being inspired by the real-life "Mafia Cops" case. The characters of Mark Virgini and Albert Kirkoff are based on former NYPD detectives Louis Eppolito and Stephen Caracappa , who were convicted of performing hits for the Lucchese crime family. Criminal Intent" Unchained (TV Episode 2005) - IMDb [S5E4] Unchained

Detectives Logan and Barek follow the trail to two rival Mafia families, but the case quickly shifts from a standard mob hit to something more internal. They uncover a "chain of responsibility" involving two highly decorated but corrupt NYPD detectives, Mark Virgini and Albert Kirkoff: : These "Mafia Cops" were on the payroll

: The corrupt officers orchestrated the murder, showcasing a chilling loyalty to each other while betraying their badges. Criminal Intent" Unchained (TV Episode 2005) - IMDb