Former rocker is named as person of interest in disappearance of his girlfriend: Cops say they found her SUV outside his home but he is refusing to cooperate

A woman has gone missing and her ex-rocket boyfriend is being considered a person of interest.

Alice 'Alyx' Kamakaokalani Herrmann, 61, was last seen in Santa Cruz on December 3, police said. Her boyfriend, 54-year-old Theobald Brooks Lengyel - who goes by 'Theo' - has reportedly 'not cooperated' with their investigation.

Since making contact with Lengyel - a founding member of San Francisco funk-metal band Mr. Bungle - El Cerrito police have declared him a person of interest in the case surrounding Herrmann's disappearance. 

Her family, after not hearing from her for over a week, reported her missing on December 12.

El Cerrito cops then located her vehicle in front of the El Cerrito home of her boyfriend, after traveled by car from El Cerrito to Portland, Oregon, in the days after Herrmann’s disappearance, the El Cerrito Police Department said in a statement.

Issued Saturday after cops supposedly made contact with the Bay Area musician, it read:  'Based on his actions, Theo Lengyel is a person of interest in Alice Hermann’s disappearance.

'[He] has not cooperated with the police investigation.'

The statement then notes how cops have taken custody of both of the couple's vehicles - and 'are looking for information about the actions of both [Lengyel] and [Herrmann] from December 3, 2023, to present.'

Anyone with information about either was urged to contact the El Cerrito Police Department as it continues its investigation, which is being bolstered by detectives from the Capitola and Portland Police Departments, cops said.

Investigators also asked residents who spend time in regional parks and 'open spaces' to be on the lookout for anything suspicious, suggesting such sights could lead to clues about the missing woman's whereabouts. 

Cops said Herrmann, a 5’04” tall Pacific Islander woman, is rarely without her red 2007 Toyota Highlander SUV,

Lengyel, meanwhile - a 5’10”, 170 pound former Saxophone player - drives a blue 1989 Ford pickup truck. Investigators said he also goes by the name 'Mylo Stone.'

Still not officially a suspect, Lengyel is the only person of interest who has been named in the now nearly week-long case.

He played saxophone, clarinet and keyboards in the Humboldt County rock group that he joined at age 16 in 1986, before getting signed to Warner Bros after a move to San Francisco in the early 90s, during which they attained commercial success.

Their 1991 debut, self-titled Mr Bungle, received mostly rave reviews, with journalist Bill Pahnelas at the time labeling its fusion of metal, funk, ska, and freeform jazz 'an incredible musical tour de force'.

Lengyel plays keyboards on the album, and woodwinds, keyboards, and organ on the band's first second studio installment, 1995's Disco Volante, and also appears along with several other Mr. Bungle members as a special guest on the Melt Banana song 'Area 877 [Phoenix Mix]', from their 1998 album Charlie.

He left the band during the second quarter of 1999 due to unspecified 'creative differences' with other members, and has since disappeared from the music scene. 

Without getting into specifics, Mr. Bungle bassist Trevor Dunn recalled in a 2005 interview how Lengyel left the band on bad terms.

'We unanimously decided to go on without him because he wasn't growing with the rest of the band and we were running out of things for him to do,' he said.

'He got pissed off and I haven't heard from him since.'

A week into their investigation, cops have yet to name an official suspect. They would not say how Lengyel was not aiding their efforts.