The departure of Griego Erwin, who wrote three columns a week, continues the run of recent embarrassments for newspapers, many of which have cost writers their jobs.
Last week, USA Today Pentagon correspondent Tom Squitieri resigned under pressure after lifting quotes from another newspaper and using other quotes without attribution.
That followed on the heels of the resignation of veteran Atlanta Journal-Constitution reporter Al Levine, who pilfered information from two Florida newspapers without crediting them.
Los Angeles Times reporter Eric Slater was dismissed last month when editors at the newspaper could not verify information in an article he wrote about fraternity hazing at Cal State Chico.
The recent headliner in the string of news scandals was bestselling author, sports columnist and TV personality Mitch Albom, who was suspended from the Detroit Free Press for describing a scene in the stands at an NCAA basketball tournament game before the game had been played.