 The Washington Business Journal reports that the CEO and co-founder of Merrifield-based Custom Inc. is stepping down. Mark Katz started the company with two of his classmates from Harvard 25 years ago, just two years after they got out of college. Stocks finished lower. The Dow finishing Friday down 378. The S&P off 40. The Nasdaq down 44. Ian Crawford, WTOP News. Good morning. Welcome into WTOP. Glad you're in with us this morning. Time now is 141.