ABC with video report
Walnut Creek police have revealed that the killer used a homemade "ghost gun" in the murder-suicide of two young college students. It was a crime and a weapon that's really surprised police.
In late July, police say 21-year-old Scott Bertics showed up at a house in Walnut Creek and shot and killed 19-year-old Clare Orton before using a second gun to kill himself. While both had been in a relationship, police are not saying what prompted the young man to commit this crime.
But police told ABC7 News that both handguns were homemade, built by the Bertics who ordered the parts through the mail.