Mikayla R. Kloth is jailed on $2 million cash bond after prosecutors said Lukas John Rosch was stabbed at her Lac La Belle apartment.

LAC LA BELLE, Wis. — A 27-year-old Waukesha County woman is charged with first-degree intentional homicide after prosecutors said she stabbed her boyfriend during a fight over dinner plans Friday night at her apartment.

Mikayla R. Kloth made her first court appearance Monday after the death of Lukas John Rosch, 25, who was found with a chest wound at an apartment on Wisconsin Avenue in the Village of Lac La Belle. The case drew attention because investigators said the argument began when Rosch arrived with chicken to cook at home, while Kloth wanted to go out. Court Commissioner David Herring set Kloth’s cash bond at $2 million, and a preliminary hearing was scheduled for May 29.

The case began shortly before 7 p.m. April 24, when officers were sent to Kloth’s apartment after a 911 call. According to the criminal complaint, police arrived around 6:48 p.m. and found Rosch on the floor with a stab wound to his chest. Kloth was in the apartment when officers entered. She told an officer she had stabbed him because she was angry, investigators said. Rosch was taken to a hospital, where he died. Prosecutors said the couple had been dating for about three years and that Rosch often went to Kloth’s apartment in the Okauchee area.

Investigators said the dispute formed after Rosch texted Kloth about coming over and making dinner. Rosch arrived with chicken drumsticks and seasoning, intending to cook in an air fryer, according to the complaint. Kloth told investigators she had wanted to go out to eat or go to a bar instead. The complaint says the disagreement escalated inside the apartment. Kloth told police Rosch had a knife and that he grabbed it by the sharp edge, but authorities said she later admitted she plunged the knife into his chest. Police have not said publicly whether any other person was inside the apartment when the stabbing occurred.

The complaint describes a short series of statements that prosecutors are likely to use as the case moves forward. Officers said Kloth made admissions at the apartment and later during transport. At one point, she allegedly asked whether police had to take her to jail. Investigators also said she made comments about how Rosch’s parents would feel about her after the stabbing. Prosecutors have not released a full recording of the 911 call, body camera footage or all witness interviews. The complaint remains the main public record of what police say happened before Rosch was wounded.

Police also documented an earlier concern reported by people who knew Rosch. About a week before the stabbing, Rosch told another woman and the apartment landlord that Kloth had bitten his thumb during an argument, according to the complaint. The landlord told investigators that Rosch appeared afraid and asked the woman to remember his full name in case something happened to him. Prosecutors have not said whether that earlier report led to any police call, medical treatment or protective order. No such order was described in the charging documents that were reported after Kloth’s first appearance.

Rosch’s family identified him publicly after the stabbing and described him as loving, giving and kindhearted. His obituary says Lukas John Rosch was born Jan. 30, 2001, in Waukesha and was survived by his parents, sisters, nieces, dog and extended family. In a statement released through local news outlets, the family said they were “completely broken” by his death and asked for privacy while they process the loss. The statement added a fuller picture to a court file that otherwise focuses on the apartment, the knife and the fast-moving response by police and medics.

At Monday’s hearing, Herring set a high cash bond after reviewing the allegations and the statements police said Kloth made. First-degree intentional homicide is Wisconsin’s most serious homicide charge and carries a life sentence if a defendant is convicted. Kloth remained in custody after the hearing. Court records and local reports did not show that she had entered a plea by the first appearance, which is usually focused on bond, probable cause and the next date rather than a full review of guilt or innocence.

The next major step is the preliminary hearing scheduled for May 29 in Waukesha County. At that hearing, prosecutors must show enough evidence for the homicide charge to continue toward trial. The defense may question witnesses and challenge parts of the state’s evidence, including the alleged admissions, the knife evidence and the account of the earlier biting incident. Prosecutors are expected to rely on the complaint, officer observations, medical findings and any recordings gathered after the 911 call.

For now, the public record shows a fatal stabbing, a single homicide charge and a defendant held on $2 million cash bond. Rosch’s family is preparing for funeral services while the criminal case moves toward the May 29 hearing.

Author note: Last updated May 20, 2026.