Woman Is Convicted of Mail Threats From Prison : Trial: Marsha Lois Kaiserman wrote to her former defense lawyer and the judges and prosecutors who had her incarcerated.

A Sherman Oaks woman has been found guilty in federal court of sending letters from prison threatening to kill a lawyer who defended her on an earlier charge as well as the judges and prosecutors who had sent her there.

Jurors in U.S. District Court in Los Angeles on Thursday convicted Marsha Lois Kaiserman, 42, of four counts of mailing threatening letters in December and January. When she sent the letters, Kaiserman was serving a term of two years, eight months in state prison for terrorizing a former boyfriend.

In that case, Kaiserman was convicted in Van Nuys Superior Court of making false bomb threats and vandalizing the car of David Fox, 37, whom she dated briefly in 1989. Fox, a graphic artist, testified that Kaiserman became enraged when he tried to end their relationship after three weeks.

From prison, Kaiserman sent a letter to the judge who had sentenced her, saying she planned to kill her attorney, Christopher Nance, “in cold blood.”

She sarcastically asked Superior Court Judge Raymond Mireles to advise her on what kind of a sentence she would get for killing her lawyer “because I am planning my entire future around the outcome, if I murdered him. . . .”

In other letters, Kaiserman threatened to kill Mireles and Municipal Judge Leslie A. Dunn, who had presided at her preliminary hearing, and advised them to always work in courtrooms with metal detectors and security guards. She also wrote a letter to Deputy Dist. Atty. Andrew W. Diamond, who prosecuted her, threatening to hide a bomb in his car. The excerpt is printed as written.

“And when you & Ira Reiner & all your other dillusionally insane district attorney constituents pile in for lunch someday very soon,” she wrote, “your old heap explodes on Van Nuys Boulevard in front of the courthouse & you all wind up in Hell where you belong.”

Kaiserman faces up to 20 years in prison for each count, said Carol Levitsky, a spokeswoman for the U.S. attorney’s office.

Assistant U.S. Atty. David R. Garcia, who prosecuted the federal case, said he was undecided about how much prison time, if any, to ask for at Kaiserman’s Nov. 4 sentencing hearing. He added that she has mental problems and is in need of treatment.

Kaiserman was taken into custody on the federal charge May 3 after completing her state prison term.