Nearly three dozen survivors and family members of victims will tell their stories to Joseph James DeAngelo during an extraordinary four days of court hearings before the 74-year-old is sentenced to life in prison.

A news conference will be held Wednesday afternoon in Sacramento to make "a major announcement," said District Attorney's spokeswoman Shelly Osorio.

Forty years ago, kids rode their bikes unsupervised through suburban bedroom communities bracketed by Air Force bases east of Sacramento, California. Families rarely locked their doors at night.