LAS VEGAS (AP) — Longtime newspaper attorney and executive Mark Hinueber, an advocate for press freedom and government transparency during 42 years with the Las Vegas Review-Journal and other newspapers, has died.

Former Review-Journal columnist Jane Ann Morrison, who wrote Hinueber's front-page obituary for the newspaper on Friday, said that Hinueber died Thursday at a hospice in Las Vegas after battling prostate cancer. He was 66.

Glenn Cook, Review-Journal executive editor and vice president for news, called Hinueber "a mentor and confidant for hundreds of journalists."

Hinueber was legal chief for Scripps League Newspapers in San Mateo, California, before joining Arkansas-based Donrey Media Group in 1994.

In Las Vegas since 1999, Hinueber became company vice president, general counsel and human resources director. He retired in January 2016.

He is survived by his wife, Maureen, a son and other family members. Services are private.