The Advocate’s coverage of Angola Warden Burl Cain was named Thursday as a winner of an award from a national organization of investigative reporters.

The newspaper revealed in November that the warden had entered into an investment partnership with two powerful businessmen, each of whom was seeking to boost an inmate in the state prison system. Cain took actions benefitting each of the inmates.

The warden announced his retirement after the piece was published, ending two decades running the state’s largest prison.

Investigative Reporters and Editors honored the coverage as the best investigative work among small newspapers.

The award honored the work of managing editor Gordon Russell and reporters Steve Hardy and Maya Lau.

The newspaper will receive the award this summer, when the organization holds its annual convention in New Orleans.

There were no other winners in Louisiana.

IRE, founded in 1975, is a nonprofit professional organization dedicated to training and supporting journalists who pursue investigative stories.