Tractor-trailer hit a line of vehicles backed-up in traffic due to construction.
A rockfall while climbing on Mount Cowen swept Swanson and another climber down the slope.
Firefighters had arrived at the gas leak in Murrieta about an hour before the explosion.
Suspect was seeking methadone and had been buzzed into the clinic.
Gunman dead after shootout with police officers at Tacoma Northwest Detention Center.
Nine dead when plane crashes after takeoff.