The aunt of Elliot Rodger has told ITV News it is "shocking" that the 22-year-old was able to get his hands on a firearm when he was clearly in a mentally disturbed state.
Jenni Rodger said although she had only met Elliot on a few occasions and did not know him well, it was clear that he should not have had access to guns.
"It is absolutely shocking that guns in the US are able to get into the hands of sick and disturbed people, she said.
"I just hope that this horrific incident is the catalyst for an end to this ever happening again and a serious prevention of access to guns in the future.
Her call echoed those of the father of Christopher Michaels-Martinez, one of the victims of Rodgers' shooting spree.
More top news
The head of the pensions regulator has given his advice to anyone concerned about pension scams.
The Tonight programme investigates our housing shortage and asks what can be done to ensure we all have a place to call home.
Upcoming pension reforms have provided an opportunity for unscrupulous and criminal operators to cash in.