Little, the man authorities say was the most prolific serial killer in U.S. history, has died. (California Department of Corrections via AP)LOS ANGELES – The man authorities say was the most prolific serial killer in U.S. history, with nearly 60 confirmed victims, died Wednesday in California. California corrections department spokeswoman Vicky Waters said there was no sign of foul play, and his cause of death will be determined by a coroner. "Nothing he’s ever said has been proven to be wrong or false,” Holland told the CBS news magazine “60 Minutes” in 2019. Another after he told Holland he’d killed the victim near a set of unusual looking arches in Florida.