DES MOINES (AP) - A man released from state custody after a jury found he wasn't a sexually violent predator is free without any state supervision, state officials said Friday.

Loren Huss, 42, was initially convicted of first-degree murder for the death of his girlfriend, Marilyn Sheets, 22, whose mutilated body was found in apartment the two shared. He was later found innocent by reason of insanity after a federals appeals court ordered a new trial.

Prosecutors sought to keep Huss in custody claiming the killing was sexually motivated and that Huss was a sexually violent predator who remained a danger to the community.

Jurors, who asked not to be identified, said prosecutors failed to prove their case.

They said there was a lack of evidence that Huss sexually assaulted Sheets or that the crime was sexually motivated.

Dr. Michael Spodak, a Maryland psychiatrist who testified for the state, said he is worried about Huss' release.

" … I am frightened. I wouldn't want him living next door to me," Spodak said.

Because Huss was not convicted in Sheets' death and because a jury has found he cannot be held as a sexual predator, he is under no state control, said officials with the Iowa attorney general's office and the Iowa Department of Corrections.

"There is no legal basis for that," said Bill Roach, an attorney general spokesman.

"He is under no department of corrections supervision or any supervision of any kind," said Fred Scaletta, a corrections department spokesman.

Defense experts testified during the hearing that Huss suffered from a pscychotic delusion and was in a manic state of biopolar disorder when he attacked Sheets.

Huss has said he believed the devil was in Sheets and that he was trying to drive the devil from her.

Huss was found in the apartment with the mutilated body of Sheets. Her eyes had been gouged out and her nose bitten off. He also had written messages on the walls of the apartment in Sheets' blood.

He told jurors that he had been delusional for several months leading up to Sheets' death and that he was getting messages from barking dogs and songs on the radio.

The Iowa Supreme Court determined in 2003 that Huss was no longer dangerous because he had shown no signs of mental illness in years. The state requires that someone be released if their sanity has been restored.

The state then sought to keep Huss in custody claiming he was a sexually violent predator, but jurors rejected that claim and freed Huss after 19 years in state custody.

Meanwhile, Iowa authorities are studying whether they can add Huss' name to the state's sexual offender registry. Defense lawyers said Huss is not required to register because the Sheets' killing was not sexually motivated.

"We want to make sure that if he is required to register, that he is registered," said Steven Conlin, who oversees the registry for the Iowa Division of Criminal Investigation. "If he's not required, then so be it."

Dr. Michael Taylor, a psychiatrist who testified on both sides of Huss' case said there is no way to know if problems from Huss' bipolar disorder would resurface.

"It's not unusual for a person's basic personality traits to become exaggerated when they get manic," Taylor said.

Huss is not currently taking medication but has indicated he will if a doctor finds a suitable drug and determines it's necessary.

He has acknowledged a sexual motivation for two other crimes, including a 1981 gang rape of a woman near Saylorville Lake.

Huss testified that he plans to move in with his sister and mother if he was released and promised to meet with a psychiatrist weekly to help him adjust to the transition into the community.

Jurors were told that Huss had a 3.64 GPA in more than 50 hours of college credit while in custody and plans to finish school and get a job, possibly as a counselor.