Olesker isn't just a plagiarist. He regularly distorted facts or flat-out made them up in order to bolster his opinions. The Sun always let him get away with it because they agreed with his opinions. They used the excuse that he had license to do so because he wrote opinion pieces, not "hard news".
Apparently they couldn't find an excuse to let him get away with outright plagiarism (even though they merely referred to it as 'failure to appropriately attribute' or some such).
BTW, he used to do those 30-second opinion pieces for one of the Balimer TV stations, too. Not only did he have the same journalistic integrity in producing those, but he's ugly and has one of the most annoying voices I've ever heard, to boot.
Saint Olesker is one of the most arrogant public people I have ever seen.
I used to HATE his TV appearances (the one minute opinion bloviation) on JZ.