April 17, 2009 5:26 pm Mystery Surronds Cupertino Killings A slaying in a quiet Cupertino community has put a neighborhood on alert. US & World Videos 4:52 Watch: Oakland Ballers co-founder discusses team, new ballpark 2:23 Forecast: Warm and windy day 0:32 Crime numbers down in Oakland, police data shows 5:44 May Day demonstrations, Gaza war protests continue across Bay Area 0:39 Sea lion population boom at San Francisco's Pier 39