SAN RAFAEL, Calif. —
Still, New York authorities say they're not ready to eliminate Naso as a suspect, and they hope area residents who might know him will be able to help with their investigation, the Rochester Democrat and Chronicle reported.
Naso was arrested in South Lake Tahoe late Monday after being released from the El Dorado County Jail, where he was serving time on an unrelated probation violation. Authorities said he was on probation for a 2009 grocery store theft in California when a random search of his Reno, Nev., home in April 2010 turned up guns and ammunition.
The search also uncovered evidence that helped link him to the California killings, said Nevada authorities, who soon launched a task force to look into cold cases possibly connected to Naso.
"We think there are others out there we haven't discovered yet," Chris Perry, acting director of the Nevada Department of Public Safety, told reporters Tuesday. "Typically when you are talking about a person who has killed more than once, this doesn't stop."
Naso was being held without bail in Marin County. Through guards, he declined a request from The Associated Press for a jailhouse interview.
Marin County District Attorney Ed Berberian obtained permission from other jurisdictions to try all four of the Northern California cases. He said he plans to seek the death penalty against Naso, who's scheduled for arraignment Wednesday on four counts of murder with special circumstances.
The first victim was Roggasch, whose body was found in Fairfax in 1977, Berberian said. According to news archives, investigators interviewed a prostitute at the time who claimed her pimp kidnapped, tortured and killed the 18-year-old, though no one was ever arrested in the case.
The second victim was Colon, whose body was found near Port Costa a year later, Berberian said. Parsons and Tafoya were found dead in Yuba County in 1993 and 1994, respectively, the prosecutor said.