The house at 1998 Marin Ave. in Berkeley — purchased by UC Berkeley professor Przemyslaw Jeziorski in 2014 — has been occupied since at least December by two people the family's attorney says have no legal claim to it. An unlawful detainer case is pending in Alameda County Superior Court.

The house at 1998 Marin Ave. in Berkeley — purchased by UC Berkeley professor Przemyslaw Jeziorski and his then-partner in October 2014 for $970,000 — has been occupied since at least December by two people the family's attorney says have no legal claim to it. An unlawful detainer action is pending in Alameda County Superior Court. The house is still occupied.

Jeziorski, a 43-year-old Haas School of Business professor, was shot multiple times on July 4, 2025, in a suburb of Athens. His family's attorney, Erin Stratte, describes the killing as a coordinated plot involving five people, including his ex-partner, Konstantina Nadia Michelidaki. Her then-boyfriend confessed to being the shooter within days of the incident; all five were arrested. On June 4 of this year, Michelidaki was found dead in her prison cell in what authorities classified as an apparent suicide, according to a news release from Stratte.

The Marin Avenue property, which the two had operated as an Airbnb, sat unoccupied in the months after Jeziorski's death. Berkeley Police spokesperson Byron White told SFGATE that officers responded to the address at approximately 2:24 a.m. on December 4, 2025, for a reported burglary — four masked suspects had allegedly kicked in the front door and fled before police arrived. Later that same day, a woman appeared at the property claiming to be a legitimate tenant. Stratte's firm believes those two events are connected: the occupants gained access, the firm says, by reporting their own break-in.

On January 29, 2026, a representative of the Jeziorski family called BPD back to the address. Officers found two people inside — including the same woman from December — who again presented a tenancy claim. Investigators, according to White, were "unable to substantiate either party's claims regarding lawful possession of the property" and designated the matter a "civil matter that must be resolved through the civil court process."

Stratte was unequivocal. "The reality is that it's impossible that they paid money or entered into a lease with the owners…or any agent of the owners," she told the Daily Californian. Her firm filed an unlawful detainer action and served eviction notices on April 21.

Neighbors have told Stratte that the occupants have been selling items from inside the home; the occupants allegedly damaged what she described as a "historic 100-year-old wall adjacent to the property."

The case is pending. Walking past 1998 Marin Ave. today, there is no notice on the door, no scaffolding — no outward signal of the legal contest inside. Just a house, still occupied, while a court decides who has the right to be there.