Kamil P. was sentenced to 25 years in prison for the brutal murder of Martyna in Warsaw in February 2014, motivated by a desperate need for drug money.
“She Wasn’t Supposed to Be Here”
On February 6, 2014, Agata received a hysterical phone call from her cousin, informing her that her daughter, Martyna, was likely dead. Agata and her daughter rushed to Martyna’s apartment, where police were already present, initially preventing them from entering.
Agata recalled a normal morning on February 5th, 2014, Martyna’s name day, where she and a friend had briefly met before Martyna went to work. She described her routine commute to work, unaware of the tragedy that would unfold.
“Martyna, What Are You Doing Here? You Weren’t Supposed to Be Here!”
Returning home, Agata discovered Martyna lying motionless in the bathtub, covered in blood. She immediately called for help, repeatedly returning to the apartment in disbelief.
A Packed Yogurt Drink
Martyna had packed a yogurt drink, indicating she was preparing for work. She had been working at a pizzeria since autumn 2013 and had been happy with her job, making plans for the future. Her last phone call, seven hours prior to her death, showed she was in good spirits.
A Reasonable Girl and an Oddball
Agata and Martyna lived alone; Martyna’s father was estranged. Both women worked, and Martyna was also studying cosmetology. She had struggled in her romantic life, attracting the attention of Sebastian, a man who couldn’t commit.
Sebastian, who moved to Germany for work, openly admitted to being unfaithful. Martyna confided in friends about her heartbreak, yet still held onto hope. He displayed concerning behavior, carrying a knife and expressing interest in unusual hobbies like militaria and poisonous spiders.
“Type Fourteen”
While Sebastian was initially considered a suspect, his alibi checked out. Investigators focused on the likelihood that the killer knew Martyna and gained access to her apartment, which was located on an adapted attic floor.
A cousin described Martyna as sensible and calm, unlikely to let a stranger into her home. She mentioned Kamil, a neighbor with a troubled family background and a history of mental health issues, as a potential person of interest.
Police Investigation Focuses on Kamil
Police inquiries revealed Kamil had a reputation for antisocial behavior, drug use, and potential mental instability. Neighbors avoided him, fearing his unpredictable nature. He was not seen on the night of the murder.
Officers discovered Kamil had disappeared and was being sought by police. His mother, living elsewhere, contacted him, but he seemed unconcerned, spending time with teenagers on the Praga district.
“Let’s Smoke One?”
The crime scene revealed a horrific scene: Martyna lying in the bathtub with a severe throat wound. The initial medical assessment indicated a violent crime. There were no signs of robbery.
A Trail of Evidence
Investigators suspected Kamil, but reconstructing the events of February 6th proved difficult. A text message from Kamil to a friend, offering drugs, surfaced. The friend and another teenager spent the day with Kamil, who briefly left to “talk to a neighbor.”
The teenagers led police to a rooftop garage where Kamil had discarded blood-soaked clothing, tape, and other items. The clothing matched the blood found at the crime scene.
“I Heard a Voice”
Kamil was arrested and confessed to the murder, claiming he was driven by a need for money to buy drugs. He stated he heard a voice telling him to obtain funds, and he took a knife from his home.
He admitted to entering Martyna’s apartment, attacking her, and stealing jewelry. He later sold the jewelry for a meager 90 zloty, then used the money to buy drugs. He expressed remorse but was deemed unfit for treatment and was remanded in custody.
Selfies as an Alibi
On the day of the murder, Kamil, Karolina, and Angelika posted cheerful photos on social media, attempting to create an alibi. This contrasted with reports that Kamil had been distressed and withdrawn earlier in the day.
A Confession and Stolen Goods
Karolina eventually confessed that Kamil had returned to the apartment covered in blood, claiming to have killed two people. He had stolen jewelry from Martyna and asked Karolina to sell it. They then took selfies to bolster their alibi.
The stolen jewelry was largely worthless, with the sale netting only 90 zloty. Kamil reportedly exclaimed, “F***, I killed people for 90 zloty,” but the girls encouraged him to forget about it and use the money to buy drugs.
“He Took My Whole Life”
Agata described Kamil as someone she and Martyna knew well, even welcoming him into their home. She had warned Martyna about him, but Martyna had always tried to help him, offering kindness and support.
“The Knife in the Pouch”
During a reconstruction, Kamil became agitated when asked to revisit the scene. He admitted to taking a knife from his “pouch” and going to Martyna’s apartment. He claimed she let him in and was preparing for work when he attacked her.
He stated he didn’t remember the details of the attack, claiming he was under the influence of drugs. He admitted to looting the apartment and returning to ensure Martyna was dead.
A Troubled Past
Kamil’s history revealed a pattern of substance abuse, behavioral problems, and legal issues. His father struggled with alcoholism, and his family life was unstable. He had a son but struggled to provide for him.
He had attempted suicide twice and briefly attended therapy, but lacked the motivation to fully commit to treatment. He was on a waiting list for inpatient rehabilitation at the time of the murder.
“Holes in the Brain”
The central question was whether Kamil was sane during the murder. Experts debated whether his drug use had impaired his judgment or caused him to experience hallucinations. Toxicology reports indicated he was likely under the influence but didn’t suffer from memory loss.
The Verdict
After an eight-month trial, Kamil’s defense requested a 15-year sentence. The prosecution sought a life sentence. The court ultimately sentenced him to 25 years in prison.
The judge emphasized that Kamil had exploited Martyna’s trust and acted with brutality. He was deemed “demoralized” and “ruthless,” showing little remorse for his actions. He continues to serve his sentence in a therapeutic setting.

