January 13, 2009 6:46 am CO2 Kills SF Man Residents were allowed to return to a San Francisco apartment building after a carbon monoxide leak Monday night that left one person dead and eight people injured. US & World Videos 2:51 Cinthia's forecast: Spring storm, cooler temperatures 2:59 2 San Jose police officers shot, injured in gunbattle at hotel 1:46 Pursuit standoff causes traffic backup in Solano County 3:23 UC Davis finds brain sizes are growing 3:36 Waymo expands driverless taxi service