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.

Gunman Elliot Rodger stabbed three people to death at his apartment before going on to shoot three more, it has emerged.

The nationwide manhunt for a US Marine wanted over the brutal killing of a 20-year-old pregnant colleague who had accused him of rape focused on Louisiana and Texas today, after he was apparently seen catching a bus.