California shooting: Victim's father blames politicians and NRA

The father of one of six people killed in drive-by shootings in Santa Barbara has blamed "craven politicians" and the NRA for his son's death.

In an emotional statement, Ricardo Martinez said the death of his 20-year-old son Christopher had left his family "lost and broken".

Authorities have not confirmed the identity of the gunman but Hollywood filmmaker Peter Rodger has said he believes the attacker was his 22-year-old son Elliot.