3 are dead after 2 firefighting helicopters collide in Southern California
                                
                                
                                    (Newser) -
                                    Three people were killed after two firefighting helicopters collided in Southern California on Sunday while fighting a blaze in Riverside County, emergency officials said. One of the helicopters landed safely, per the  AP . "Unfortunately, the second helicopter crashed, and tragically, all three members perished, which included one Cal Fire...