The shooting in Orange, California, that killed four people including a 9-year-old boy on Wednesday was carried out by a 44-year-old man who knew the victims, police said on Thursday, as they ruled out the shooting as a random act. #California #CaliforniaShooting #News #Reuters Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en