Nadia Michelidaki, 43, and her boyfriend Christos Dounias, 35, were arrested this week for the fatal shooting of UC Berkeley professor Przemyslaw ‘PJ’ Jeziorski in Greece

Jeziorski was in Greece to visit his two children and attend a family custody hearing when he was shot five times in broad daylight in Athens on July 4, near his ex-wife’s house 

Jeziorski was shot five times in broad daylight in Athens on July 4 near his ex-wife Nadia Michelidaki’s house

Jeziorski and Michelidaki were in the middle of a nasty custody battle when he was murdered. Przemyslaw Jeziorski, a UC Berkeley business professor, had sought a restraining order against his ex-wife in May

Back in May, Michelidaki shared an AI image showing a man in a suit looking unhappy and surrounded by money, next to him another man is seen smiling as he holds a fishing rod and hugs his son

Michelidaki tagged her new boyfriend and wrote: ‘When you realize that you picked the best dad for your kids’

Michelidaki and Dounias planned the murder, and that Dounias was the one to pull the trigger as Jeziorski arrived to pick up his children – police

Christos Dounias allegedly, has confessed to the murder, claiming his girlfriend was the mastermind

UC Berkeley professor Przemyslaw Jeziorski [photo], was shot five times in broad daylight in Athens on July 4, 2025. He had sought a restraining order against his ex-wife in May. She has been arrested for the killing

A woman appeared to brag in a Facebook post that she had chosen a new, better dad for her children has been accused of plotting to have her estranged husband killed, then got her new boyfriend to shoot the target when he showed up to visit their children.
Athens resident Nadia Michelidaki, 43, and her boyfriend Christos Dounias, 35, were arrested this week for the fatal shooting of UC Berkeley professor Przemyslaw Jeziorski, in Athens, Greece. 
Jeziorski, 43, was shot five times in broad daylight in Athens on July 4 near his ex-wife’s house.
Nadia Michelidaki who is a Greek national met her ex-husband, Jeziorski, in the US. The pair married in 2014 and he filed for divorce in 2021.
The former couple who married in 2014 before Jeziorski filed for divorce in 2021, share two young children. Michelidaki returned to Greece six years ago after their contentious divorce.
The murder plot was activated when Jeziorski who was visiting in Greece to attend a family custody hearing, showed up at the home of his ex to visit his children. 

Nadia Michelidaki, [photo], was arrested in Greece this week for the murder of her Berkeley professor ex-husband. Her boyfriend allegedly, has confessed to the shooting, claiming she is the mastermind of the murder plot. Three other alleged accomplices are also in police custody  

They have since been embroiled in a contentious divorce and by May 2025, Przemyslaw Jeziorski had sought a restraining order against his ex in San Francisco.
That same month – May – Michelidaki shared an AI image showing a man in a suit looking unhappy and surrounded by money. Next to him, another man is seen smiling in his sleep beside a fishing rod while hugging his son. 
Michelidaki tagged her new boyfriend and wrote: ‘When you realize that you picked the best dad for your kids.’

Michelidaki’s boyfriend, Christos Dounias [photo], allegedly has confessed to the murder, claiming his girlfriend was the mastermind of the plot to shoot her ex-husband when he came to her house to pick his children

The alleged killer and the beloved professor had been going through a nasty custody battle when Jeziorski was killed, according to police. 
Greek authorities said Michelidaki and Dounias planned the murder, and that Dounias was the one to pull the trigger as Jeziorski arrived to pick up his children. 
Jeziorski died at the scene while the gunman described by witnesses as a tall man with an athletic build, fled on foot.

Przemyslaw Jeziorski was fatally shot outside a home in Athens where his ex-wife and two children live, a couple of months after he had sought a restraining order against his ex-wife Michelidaki – he was there to attend a child custody hearing

Speaking through her lawyer Michelidaki has denied any involvement in the murder. She appeared to be cooperating with investigators, and told local media that she did not know of anyone who would want to harm her ex-husband.
In later developments, Greek media reported that her alleged co-conspirator, Christos Dounias, has confessed to the murder.
Dounias reportedly, told police that his girlfriend is the mastermind of the murder plot, while he was the trigger man. Two Albanians and a Bulgarian now in police custody have been accused of providing the murder weapon and transporting the shooter. 

Two months prior, Nadia Michelidaki shared this AI image in a Facebook post, of a seemingly unhappy man surrounded by cash, in bed next to a second man who is smiling as he hugs a child while asleep beside a fishing rod. Michelidaki tagged her new boyfriend. Her new beau allegedly has admitted to being the trigger man

During their marriage Jeziorski and Michelidaki founded a rental property management company and were apparently also battling over finances. 
The professor had sought a restraining order in San Francisco against his ex-wife in May, saying he feared for his life, before he was killed, as reported by the San Francisco Chronicle. 
He accused Michelidaki of threatening and exhorting attempts and said Dounias assaulted him twice – once knocking his phone out of his hand and later the dame day kicking and pushing him.
Dounias was charged with assault over the May incidents.
‘She made me afraid of my life by having her partner, who is hostile and aggressive towards me, (present) during the visitation exchange, despite my asking her not to do so,’ Jeziorski wrote. 

Police at the scene on July 4, after Prof Przemyslaw Jeziorski was shot five times in broad daylight in Athens near his ex-wife’s house 

Two months prior, the victim had sought a restraining order in San Francisco against his ex-wife, Michelidaki [photo], but after the shooting she said she did not know of anyone who would want to harm him.

Jeziorski also claimed his ex-wife had been sending him messages on Slack demanding co-authorship on his research and ‘threatening to “contact my colleagues and the dean of my department if I did not pay her money.’
The professor added he believed Michelidaki was trying to ‘humiliate me socially in order to control me.’ 
‘Although I know her threats are baseless, I am still intimidated by her actions,” He wrote. ‘Her baseless allegations will harm my economic prospects for employment and completely damage my reputation in the intellectual community, regardless of their truth.’
‘Przemek loved his children and fought for them until the end. He paid the heaviest price, unnecessarily, for this,’ the professor’s family said in a statement after the murder.
‘This summer, he wanted to bring his children to his hometown of Gdynia, Poland. This death and the circumstances surrounding it remain impossible for us to accept, but we find some measure of comfort knowing that progress is being made toward justice, and that the kids are about to reunite with their family into a safe environment.’

Bullet casing recovered from the scene after professor Jeziorski was shot multiple times on the streets of Athens on July 4 

The former couple’s two young children who have dual US and Polish citizenship are now in the care of Greek child custody. 
Co-founder of Keybee, a start-up for UC Berkeley’s Skydesk, ‘that provides a data-driven solution to managing thousands of short-term rentals,’ including popular sites like Airbnb, Vrbo and Booking.com, Jeziorski was born in Poland and studied at the SGH Warsaw School of Economics, the University of Chicago, the University of Arizona and Stanford University, where he got his PhD in Economic Analysis and Policy.
He previously taught at Johns Hopkins University and was a research intern at Microsoft as well.