Parents heard news of son's US rampage on radio

Gunman Elliot Rodger’s parents heard the news of his bloody rampage on the radio as they were racing to Santa Barbara, California, after his mother saw his online threats, it has emerged.

Hunger Games assistant director Peter Rodger and his ex-wife Chin later learned their British-born son had killed six people and wounded 13 in the college town of Isla Vista before, authorities say, taking his own life.