The 20-year-old Stanford University student became the first African-American woman to win a gold medal in an individual swimming event when she tied for first with Penny Oleksiak of Canada in the 100-meter freestyle Thursday night. The Mercury News, which covered Manuel's collegiate career at nearby Stanford, tweeted an apology, saying the headline was insensitive. Readers took to social media sites almost as soon as the offensive headline was posted to complain about the gaffe.