She now releases solo albums with her band Mz O and Her Guns, as well as having recently joined a variation of Christian Death (known as Christian Death 1334) with original members and while she takes on vocal duties in place of the late Rozz Williams.
The Super Heroines released several albums, and when Rikk Agnew left Christian Death, Rozz asked Eva to fill in on guitar. She was in Christian Death for a short time before they added two more members, one of whom later played some shows with the Super Heroines. The Super Heroines made their last album, Love and Pain, in 1983; but it was not released for another 8 years.
In the mid-1980s, Eva became involved with personal demons and a strong distaste for the world. She spent a lot of time with Richard Ramirez, with whom she was in a relationship. Ramirez committed several murders in San Francisco and stood trial there. Eventually, Eva got back together with Rozz, married him, and moved to San Francisco with him. While there, she became interested in the writings of Anton LaVey and Boyd Rice and started to suffer from depression. Out of boredom, she and Rozz started another band known as the Shadow Project; they released two albums in the 1990s with that band. They described their music as "a strange mixture of metallic death rock and punk." It was after their second album, Dreams for the Dying, that Eva and Rozz started to write even more darker, depressed and rage filled subject matters which was a reflection of the internal struggle they were having in their personal lives. Although Eva never considered herself to be an official member of Christian Death, her participation in that band and Shadow Project earned her the "queen of darkness" title.
Christian Death reunited and released two more albums, but the lineup that the band used on those albums was essentially just everyone from Shadow Project. Shadow Project went on one final tour after recording a live album, In Tuned Out.
Tired of Rozz's getting most of the credit for the Shadow Project work (much of which she wrote), Eva O went solo and released Past Time in 1993 on Cleopatra Records. The album featured material from her days with the Speed Queens, the Superheroines, and Christian Death, as well as three new solo songs. In 1994, she began working on her second solo album, which she was originally going to call Angels Fall for a Demon's Kiss, but after studying more about the classic hierarchy of angels on both sides of the good-vs-evil spectrum, she ended up becoming a Christian and rewriting the entire record and renaming it Demons Fall for an Angel's Kiss. Produced by John Indovina, the album was tamer and calmer in comparison to her previous rugged and wild material.
Rozz Williams killed himself on April 1, 1998; the last Shadow Project recording titled From the Heart was released on May 12 of the same year. An acoustic album, From the Heart's lyrics represented influences of Eva's positive views.
After numerous reworkings and remixings, Eva finally completed her Damnation (Ride the Madness) album in 1999 and in 2005 its follow-up Damnation/Salvation album and released it on the German death-metal label Massacre Records in 2005. Among the performers on it are Josh Pyle (keyboards/programming), River Tunnell (bass), and Kristian Rosentrater (drums), all members of the industrial band Audio Paradox. Damnation/Salvation is a detailed chronicle of her involvement with the occult and Satanism climaxing with her encounter with Jesus. It has been repeatedly turned down for distribution in the United States due to its subject matter. She emphasizes that people need to listen to the entire album in order to understand its full meaning, rather than judging it by its cover, track listing, and the lyrics of the first several songs.