A look back at former NYPD detective Frank Serpico

For many, the patron saint of whistleblowers is Frank Serpico, the former NYPD detective who reported police corruption in the late 1960s and early 1970s.

Frank Serpico was profiled in a documentary film in 2017 and he was made world-famous as the subject of Sidney Lumet’s film, “Serpico,” which starred ...