A heartbreaking discovery has shaken the quiet village of Winneconne, Wisconsin, after a father and his two young daughters were found dead inside their home just hours after the final divorce decree between the parents was granted. Responding to an urgent welfare check and medical call on the evening of Friday, July 31, 2026, officers reached the residence on the 500 block of Division Street only to find all three unresponsive. Those arriving at the scene confronted a tragedy that has left the close-knit community reeling and raised profound questions about a prolonged custody battle, repeated safety concerns, and a system that the girls’ mother says failed them.

Jeffrey Manke, 57, and his daughters—Jaelyn, 16, and Lenora, 11—were discovered dead inside the home. Authorities with the Winneconne Police Department and Winnebago County Sheriff’s Office confirmed the identities and stated that the incident appeared isolated, with no ongoing threat to the public. The investigation remains active, and officials have not released the cause or manner of death. No further details about the condition of the scene have been made public beyond the fact that responders found the three deceased.

Court records show that earlier the same day, Manke and the girls’ mother, Lindsey Lewandowski (also referred to in some reports as Lindsey Dash), 38, appeared for a hearing that finalized their divorce. The court determined the marriage was “irretrievably broken with no chance for reconciliation.” The couple had been engaged in a nearly year-long (some accounts describe it as nearly two-year) legal process after Lewandowski filed in 2024. Joint legal custody of the daughters was granted, continuing an arrangement that had been in place, and Manke was ordered to pay child support. Lewandowski was awarded the marital home in nearby Oshkosh.

The timing has intensified the anguish. Just hours after the legal formalities concluded, the welfare check led to the discovery that ended any remaining possibility of shared parenting. Lewandowski has spoken publicly through social media posts that have circulated widely. In one statement she wrote of her devastation and the efforts she said she made over years: “I’m so sad. Everyone they talked to knew they were not safe in his care. And I fought so hard to try to keep them safe. The family counselor dismissed them and refused to continue working with them. The gal knew they didn’t want to be there. Cps reports were made. Cops were called. I was legally forced to send them when they felt unsafe. Nobody wanted to listen. If someone listened to their cries for help for the last 2 years, they would still be here. The system failed my babies.”

She described a life centered on her daughters. “My life revolved around my girls. Every single day. I figured out how to financially survive so I could stay home with my babies everyday to try to give them the best life possible.” Friends and family have described her as devastated and taking time to process the loss with her new partner and family. A GiveSendGo fundraiser was established to help with memorial expenses, and a Meal Train was organized for support. The girls were known in the community as dancers at Richard’s School of Dance in Oshkosh, adding another layer of loss for local families who knew them through school and activities.

Additional court records obtained by local outlets have painted a picture of prior tensions. A restraining order had been filed against Manke earlier in the year; it noted his access to firearms. Four days before the deaths, a witness was reportedly requested to appear in the divorce case to discuss Manke’s firearm collection and his health. A divorce settlement document referenced a collection of 14 firearms, including an AK-47 and a Glock 21. Authorities have not linked these details publicly to the manner of death, and the investigation continues without an official determination released.

Winneconne Police Chief Ben Sauriol addressed the community’s reaction, expressing deep sympathy. “We extend our deepest sympathies and condolences to the families,” he said. Describing the village as a quiet place where such events are highly unusual, he noted the difficulty of welfare checks: responders never know what they will encounter. “Heartbroken. When you have two innocent, defenseless girls like that, when you find them deceased, you have no words. You have no words for the victim’s family. You have no words for those who knew them.”

The prompt that led officers to the home has been described in reports as a medical incident and welfare check around 7 p.m. Local coverage has emphasized that investigators determined the deaths were isolated based on evidence at the scene and information gathered. No public statements have detailed any specific items found inside, including any notes or messages. The mother’s public comments have focused on the history of concerns rather than the final moments inside the house.

The case has drawn wider attention beyond Winnebago County as another example of the high stakes and potential dangers surrounding contentious divorces and custody arrangements. Family courts routinely balance parental rights with child safety. In this instance, joint custody was affirmed on the very day the three lives ended. Lewandowski’s assertions that counselors, child protective services, and law enforcement had been contacted over a two-year period, and that the girls expressed feeling unsafe, have fueled discussion about whether warning signs were adequately heeded. Officials have not commented on those specific claims as part of the active investigation.

Community members in Winneconne and surrounding areas have expressed shock. The village is described by its police chief as tight-knit and unaccustomed to this level of tragedy. Support has flowed toward the surviving family through online fundraisers and local gestures. A candlelight vigil has been mentioned in connection with the girls’ memory. Jaelyn, at 16, and Lenora, at 11, represented two different stages of childhood—one navigating high school years and the other still in elementary school—both cut short on the same day their parents’ marriage was legally dissolved.

As of early August 2026, the Winnebago County Sheriff’s Office continues to lead the investigation in coordination with local police and the medical examiner’s office. No arrests have been reported, consistent with the description of an isolated incident. Cause and manner of death remain undisclosed pending further examination. Anyone with information has been asked to contact the Winnebago County Sheriff’s Office.

The story leaves a community searching for answers and a mother insisting that her daughters’ expressed fears were never fully heard by the systems meant to protect them. Hours after a court declared a marriage over and reaffirmed shared parental rights, three members of that family were gone. The precise sequence of events inside the Division Street home may become clearer as the investigation proceeds, but the human cost is already irrevocable: two young lives ended, a father’s death alongside them, and a surviving parent left to grieve what she describes as a preventable failure.

The full picture of what occurred in those final hours may take time to emerge. For now, Winneconne mourns, the legal system faces scrutiny from at least one devastated parent, and the public is left with the stark timeline—a divorce finalized in the morning or afternoon, a welfare check in the evening, and three bodies found inside a home that should have been a place of safety for two girls whose mother says they never felt secure there.