After deliberating for less than eight hours, a Marin County Superior Court jury on Tuesday found Joseph Naso guilty of killing two young prostitutes in the 1970s and two others in the 1990s.
Naso acted as his own attorney in the two-month trial, in which prosecutors presented DNA and other compelling evidence against him. Marin County Deputy Public Defender Pedro Oliveros assisted Naso and confirmed the Reno, Nev., resident was convicted of four counts of first-degree murder.
The four victims all had alliterative initials in their names. The same jury will reconvene Sept. 4 for the penalty phase of the trial. Prosecutors are seeking the death penalty.
Naso was arrested in Reno in 2010 after probation officers searched his home in an unrelated case and found numerous photographs of nude women who appeared unconscious, obituaries of some of the victims, a list of unnamed women who appeared to be murder victims, and other evidence.
Naso's DNA was found on one victim, 18-year-old Roxene Roggasch, and DNA from his ex-wife was discovered on pantyhose found wrapped around Roggasch.