None of the American media reported this. Neither of the big ones: FOX, MSNBC, CNN, ABC, CBS. This was reported by Saudi News so take it with a grain of salt.
A Saudi Arabian newspaper is reporting that United States First Lady Michelle Obama visited in the hospital Saudi citizen Abdul Rahman Ali Issa Al-Salimi Alharbi, the young man who had been labeled a “person of interest” in the Boston Marathon bombing.
The newspaper accompanied its report with an image of Obama, although the background was generic and it couldn’t be confirmed immediately that she was at the hospital where Alharbi was being treated at the time. He reportedly suffered injuries in the Boston bombing.
CBS News in Boston reported that the first lady visited Boston Children’s Hospital and Brigham and Women’s Hospital on Thursday, April 18th:
The First Lady went to Boston Children’s Hospital, where she visited the medical and surgical intensive care unit.
Afterwards, she went next door to Brigham and Women’s Hospital to meet more victims and their families for more than an hour.
The visits were off limits to the media and came on short notice for security reasons.