A Marin County jury was asked by prosecutors Wednesday to think of the victims when considering whether convicted serial killer Joseph Naso should be sentenced to death.
Prosecutor Dori Ahana asked jurors if Naso "deserves a punishment anything less than he gave his victims."
Meanwhile, Naso told jurors he did not want to die and again denied killing 18-year-old Roxene Roggasch.
Prosecutors have asked Marin County Superior Court Judge Andrew Sweet to be able to tell jurors that since his conviction last month Naso has been linked to another victim – 56-year-old Sharileea Patton, whose body washed ashore in Tiburon in 1981.
At the time of her death, Patton was living in a San Francisco apartment house managed by Naso.
Jurors found Naso guilty of killing four prostitutes whose names have double initials: 18-year-old Roggasch in 1977; 22-year-old Carmen Colon in 1978; 38-year-old Pamela Parsons in 1993; and 31-year-old Tracy Tafoya in 1994.
Investigators have not said whether the double initials in each victim's name was a coincidence or a plan.
The 79-year-old had pleaded not guilty and represented himself during the two-month trial with some assistance from the Marin County Public Defender's office.
Naso was arrested in Reno in 2010 after probation officers searched his home in connection with an unrelated gun conviction.
Investigators found numerous photographs of nude women who appeared unconscious and in unnatural positions, laminated obits of some of the victims, a "list of 10" unnamed women that appeared to be a list of murder victims and other evidence.
Naso's DNA was found on Roggasch and DNA from his ex-wife was discovered on pantyhose found wrapped around her neck.
In addition, prosecutors read numerous entries in a diary allegedly kept by Naso that contained scrawled accounts of approaching women and offering them a ride home.
"Outside the front door I overpowered her and ravaged her," read one entry. "I couldn't help myself."
Other passages described incidents in Cleveland, Kansas City, Buffalo, Rochester, N.Y., Wichita, Kan., and Berkeley, Calif.
Marin County Deputy District Attorney Rosemary Slote called 70 witnesses. Naso called five.
During his nearly two-day closing argument, Naso came across as a confused and cantankerous grandfather who claimed he is being prosecuted for his offbeat sexual desires that he never acted on, rather than for the actual murders of four young women.
Even if he is sentenced to death, it is unlikely he would be executed. There are already 725 inmates on Death Row awaiting executions, which a federal judge put on hold in 2006 until the state revamps its capital punishment system.
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