Jonathan Turk has remained jailed since March as records, surveillance and police video have gradually filled out the case against him.
PEORIA, Ariz. — What began as an unusual 911 call on a Tuesday evening has become a double-murder prosecution now approaching trial, with Jonathan Turk accused of killing both of his parents inside their Peoria home. Nearly six months after Tina and Fraser Turk died, recently released police video has added to a record that already includes surveillance footage, court documents and an emergency-call transcript.
Turk, 29, faces two counts of first-degree murder and is being held on a $2 million cash-only bond. Arizona’s Family reported in September that he is scheduled to stand trial in early December. The proceeding will mark the first opportunity for the prosecution’s evidence to be tested comprehensively in court. Although authorities have released substantial information, Turk has not been convicted, and the state retains the burden of proving the charges.
Police first disclosed the case on March 31 after officers were sent to a home near 83rd Avenue and Jomax Road. Peoria police said a man had called 911 and stated that he had killed his parents. Officers arrived to find Turk outside the house and took him into custody. They then entered the home, where they found Fraser Turk, 63, and Tina Turk, 56, dead. Police quickly told neighbors there was no continuing danger and described the violence as isolated to the residence.
The initial public account was stark but limited. Sgt. Aracelia Montez told reporters that police had learned the couple’s son had called authorities and said he had killed them. At that stage, investigators had not publicly described a detailed sequence of events. Court records released soon afterward began to supply additional information, including allegations about what Turk said during the call and what officers saw after entering the home.
According to an arrest affidavit and subsequent reports, Fraser Turk was found near the first landing of a staircase and had suffered at least one stab wound. Tina Turk was discovered unresponsive in the master bathroom with head trauma. Paramedics pronounced the couple dead. Officers searching the house also reported seeing a hammer and knife with apparent blood inside a trash can in an upstairs bedroom, along with blood evidence elsewhere inside the residence.
The location of those items was significant because investigators say Turk had already told the emergency dispatcher where the weapons would be. Records state that he identified a hammer and knife and said they had been put in a trash can in his room. He also told the dispatcher that he would be outside with a water bottle when officers arrived. An affidavit says he indicated he intended to cooperate, an account later supported in part by home-surveillance footage showing his arrest.
Months after the killings, a transcript of the 911 exchange gave the public a fuller account of what authorities say Turk told the dispatcher. He acknowledged that his parents were inside and, according to the records, said he had killed them. He also said he had been angry with them. Investigators reported that he referred to being placed on medication when describing the dispute. Those statements are allegations drawn from the recorded call and will have to be considered within the rules governing evidence in the criminal case.
The prosecution’s timeline reaches back to earlier that day. Surveillance footage obtained during the investigation shows Turk buying a hammer at a Walmart, according to police records and news reports. Investigators believe the hammer later recovered in connection with the deaths was the one purchased at the store. That sequence gives prosecutors a piece of evidence created before the homicides, although the purchase alone does not prove when a criminal intent arose or establish every element of first-degree murder.
After the arrest, Turk did not provide a detailed interview to investigators, according to the affidavit. Authorities say he was advised of his rights and declined to make a statement. As a result, the publicly documented account attributed directly to him comes mainly from the emergency call rather than a later interrogation. That could make the recording itself particularly important as attorneys prepare for trial, along with questions about context, admissibility and how much of it jurors may ultimately hear.
The newest records concern what officers did when they reached the residence. Body-camera footage released in September shows police clearing the property and moving through the house. Home-surveillance video shows Turk outside before his arrest. According to Arizona’s Family, the doorbell footage recorded him pacing until police arrived, when he went to the ground and was handcuffed. Officers then entered the home and located the victims while continuing to search the scene.
The recordings do not establish the defendant’s guilt on their own. Instead, they document events immediately after the 911 call and corroborate parts of the reported police response. Combined with the store surveillance, emergency-call transcript, physical evidence and investigative reports, they give the case a number of contemporaneous records created at different locations and times. Prosecutors must still establish how those records fit together and prove the legal elements of the charges.
As the investigation continued, another part of the story emerged: Tina and Fraser Turk had reportedly tried repeatedly to obtain help for their son before they died. At an early court hearing, a prosecutor said Jonathan Turk had a history of mental health petitions, including three in 2026. Advocates who said they knew the family told local reporters that the parents had sought assistance over a longer period and had participated in support efforts related to the state mental health system.
Investigative records reported by Arizona’s Family also describe incidents beginning in 2023. The documents say Turk sent letters to churches, neighbors and police departments around the state that authorities regarded as threatening. Peoria police eventually created an awareness bulletin concerning him, according to the station. The contents of the letters have not been fully reported. Past police contacts and treatment efforts are background facts, not substitutes for proof of the homicide charges now before the court.
The family’s history has led advocates to argue that Arizona needs greater treatment capacity for people with serious mental illness. They have pointed to state hospital bed shortages and the difficulty some relatives encounter when seeking intensive services. Those policy arguments are broader than Turk’s prosecution and should not be treated as a medical explanation for the deaths. Mental illness does not inherently imply violence, and the available public records do not support reducing the case to a diagnosis.
The criminal proceeding may eventually clarify whether Turk’s mental health history has any formal legal role. Public reporting reviewed for this story does not establish what defense he will present at trial or whether experts will be asked to address competency, criminal responsibility or another mental-health-related issue. Those are legal questions that require specific court findings. Until such filings or rulings emerge, the known case is best understood through the evidence police and prosecutors have already documented.
The deaths themselves remain the central fact beneath the growing volume of records. Tina and Fraser Turk were found dead in their own home after a call that brought police to the property. Their son was arrested outside and has remained in custody while investigators assembled surveillance, physical evidence, recordings and background records. Each new release has added detail, but it has not altered the basic structure of the criminal case filed immediately afterward.
With trial reported to be scheduled for early December, the case is entering a different phase. Future developments are expected to come through courtroom proceedings rather than police disclosures, and judges may determine what parts of the extensive investigative record jurors can consider. Turk continues to face two first-degree murder counts in the deaths of his parents, and those accusations remain unproven unless and until they are established in court.
Author note: Last updated September 22, 2026.