The August 26, 2013 issue of The New Yorker magazine includes an article on Mark Landis in an article by Alec Wilkinson "The Giveaway: Who was the mysterious man donating all the valuable art?"
Matthew Leininger, of the Oklahoma City Museum of Art, was the first person to pursue Mark Landis, but Landis had been suspected as a forger by at least one museum, the Lauren Rogers Museum of Art, in Laurel, Mississippi. In 2003, five years before Everett Shinn called "Nymph on the Rocks." Landis had promised other works, which the museum tried for a year to obtain; which he didn't provide the pieces, the staff grew suspicious of him.The article includes a quote by art historian Noah Charney, founder of ARCA:
Some people consider Landis to be not so much a forger as a con artists which is the epithet Leininger most often employs. Noah Charney, an art historian who is the founder of the Association for Research Into Crimes Against Art, in Rome, wrote me that he thinks of Landis as an adept impostor "more akin to identity fraudsters, like Clark Rockefeller." Money isn't what such people desire. They want to be treated as substantial citizens. "Social status and a feeling of belonging is their reward," Charney wrote. In this context, the painting or drawing Landis spends an hour making is ephemeral: it needs to last only long enough to admit him to a sympathetic haven.