The stock market gave up an early gain and wobbled to a slightly lower close after the FBI said it found additional emails that were linked to Hillary Clinton, the AP reports. The disclosure came at about 1pm Eastern Time Friday and added a new note of uncertainty shortly before the presidential election. Stocks had been higher after the government said the economy grew at a faster pace in the third quarter. Health care companies lagged the market. Prescription drug distributor McKesson plunged after issuing weak results. The Dow Jones industrial average fell 8 points, less than 0.1%, to 18,161. The Standard & Poor's 500 index lost 6 points, or 0.3%, to 2,126. The Nasdaq composite declined 25 points, or 0.5%, to 5,190. (More Dow Jones stories.)