Knowlton, who believed her father was Black Dahlia killer, dead at 67

Janice Knowlton, the woman who became convinced her late father was the Black Dahlia murderer is dead.

The Los Angeles Times reports Knowlton died at her home in Santa Ana last March after taking multiple prescription drugs. She was 67.

Knowlton was the author of the controversial Daddy Was the Black Dahlia Killer.