Kaylub Giamanco had no plan to visit Silver Rail Elementary School on October 15. The 36-year-old carpenter had dropped off his two daughters that morning, then left…

US stocks ended mostly lower on Friday as investors assessed concerns about heavy spending on artificial intelligence. The market also looked ahead to a busy week of company earnings and a key Federal Reserve interest-rate meeting. The Nasdaq Composite fell 0.21% to 25,955.34. The index had suffered its biggest one-day drop since June on Thursday. The S&P 500 lost 0.52% to close at 7,623.68. The Dow Jones Industrial Average dropped 652.82 points, or 1.23%, to 52,215.16. The…