We know this because a “CBS News” producer took a photo of a yacht and reported that Kerry was on it as the coup (or non-coup, if you prefer) went down. Then the Boston Herald started following the former Massachusetts senator around and took pictures 

Teresa Heinz Kerry, wife of Secretary of State John Kerry, became ill Sunday and was taken by ambulance to a Massachusetts hospital, said a source close to the family.

Teresa Heinz Kerry, the wife of former US presidential contender and current Secretary of State John Kerry, was taken to a hospital on Nantucket, Mass., on Sunday afternoon, it's been confirmed.

Sources close to the family told ABC News that Heinz Kerry was taken from her home to the hospital by ambulance after falling ill in the afternoon. They did not elaborate on her illness. Johnson said John Kerry accompanied his wife during both

Thousand pictures of John Kerry boating prompts State Dept. to retract denial that Kerry was boating.