Edward A. Millan-Volcan faces at least 38 years and nine months in prison after pleading guilty in Sedgwick County.

WICHITA, Kan. — A Wichita man has pleaded guilty to killing the mother of his children and trying to kill her friend after a July 2025 domestic disturbance that police said unfolded inside an apartment while the couple’s young children were present.

Edward A. Millan-Volcan, 26, entered the pleas May 29 in Sedgwick County District Court before Judge Kevin Smith. Prosecutors said he admitted to first-degree felony murder in the death of Sinay Y. Leon-Montoya, 27, and attempted first-degree murder in the attack on Germany Torres Figueroa. The plea moved the case from a pending murder prosecution to a sentencing matter, with a hearing set for July 16. The district attorney’s office said Millan-Volcan faces a minimum term of 38 years and nine months in the Kansas Department of Corrections.

The case began on the afternoon of July 17, 2025, when Leon-Montoya called 911 from the 6300 block of West Kellogg Drive to report a domestic disturbance. Wichita police later said communication with dispatchers was difficult because of a language barrier. A police release said Leon-Montoya left that location and returned to an apartment on the 6800 block of West Par Lane, where the fatal stabbing occurred. Seventeen minutes after the first call, officers were sent to the apartment for another domestic disturbance report. Police said they found one woman outside with injuries from a stab or cut wound and another woman inside with stab wounds.

Investigators said the woman found inside was Leon-Montoya. She was taken to a hospital and pronounced dead. Police said the woman found outside was hospitalized with injuries that were not life-threatening. Prosecutors later identified her as Torres Figueroa, who was 26 at the time of the plea announcement. Millan-Volcan was found inside the apartment and arrested without incident, according to police. In the original police account, investigators said Leon-Montoya and the suspect had young children who were present during the incident. Later reporting said the children were the couple’s two young sons. Officials have not released a full public account of what the children saw or heard.

The evidence described in court-related reporting was severe. Authorities said Leon-Montoya was stabbed more than 60 times inside the apartment she shared with Millan-Volcan. A medical examiner found puncture wounds to her chest, neck, arms, back and head, including 21 wounds that reached her heart and lungs. Investigators found her on a bedroom floor near a three-inch scratch awl, a pointed hand tool. Reporting that cited an affidavit said Leon-Montoya had told a dispatcher earlier that Millan-Volcan was hitting and choking her and had threatened to kill her and the children. The affidavit said she told dispatchers she had to return to the apartment because something was happening with one of her children.

Police said the first 911 call came from West Kellogg Drive, while the killing took place about 3 miles north at the Par Lane apartment. That movement between locations became a key part of the timeline. Leon-Montoya was still alive when she first called for help. By the time officers were called to Par Lane at about 2:34 p.m., police said the attack had already taken place. Officers found Torres Figueroa outside the apartment and Leon-Montoya inside. The suspect remained at the scene. The police department identified the case as No. 25C128546 and said the investigation was continuing after the arrest.

Millan-Volcan was first booked into the Sedgwick County Jail on suspicion of first-degree murder, attempted first-degree murder, two counts of aggravated kidnapping, two counts of kidnapping and two counts of aggravated child endangerment. The kidnapping and child endangerment counts were later dismissed as part of the plea agreement. The plea kept the two most serious counts in place. Sedgwick County District Attorney Marc Bennett and Assistant District Attorney Sophia Brunetti handled the prosecution, according to the district attorney’s office. The Wichita Police Department investigated the case.

The surviving friend’s role added another layer to the case. Authorities said Torres Figueroa was a friend of Leon-Montoya and was injured while trying to intervene. Police initially described her as a 25-year-old Wichita woman and said she remained hospitalized in stable condition after the attack. Prosecutors later named her in the attempted murder count. Records released by officials did not describe her injuries in detail, but police said they were not life-threatening. Her survival meant the criminal case included both a homicide charge and an attempted murder charge from the same bedroom attack.

Leon-Montoya’s life before the killing has also become part of the public record. Reports citing an obituary said she was born in Venezuela and moved to the United States in 2023. She had lived in New York before moving to Kansas and worked as a shift manager at a McDonald’s restaurant. Local reporting said she came to the United States seeking a better life for her sons. Police said she was trying to end the relationship with Millan-Volcan when she died. Some reports described him as her estranged husband. Officials have not released all family court or relationship records connected to the case.

The legal next step is sentencing. Judge Smith is scheduled to decide the penalty July 16 in Sedgwick County District Court. The district attorney’s office said the minimum prison term is 38 years and nine months, though the court will decide the final sentence under Kansas law. With the guilty pleas entered, prosecutors will not have to prove the case at trial. The hearing is expected to close the main criminal case, though the effect on Leon-Montoya’s children and Torres Figueroa will remain part of the record through any victim statements or court filings allowed at sentencing.

The case now stands as a guilty plea in a killing that began with a 911 call and ended inside a west Wichita apartment. Millan-Volcan remains on track for sentencing July 16, when the court will set the prison term for Leon-Montoya’s death and the attack on Torres Figueroa.

Author note: Last updated July 6, 2026.