David Grosse Death & Obituary: David Grosse, a respected 74-year-old landlord from Milwaukee, tragically lost his life on Sunday, February 2, 2025. Known for his dedication to property management and his strong ties to the community, David’s untimely death has left friends, family, and neighbors in deep mourning.
Incident Details: What Happened to David Grosse?
On February 2, West Allis police responded to an emergency call near 61st and Lincoln. According to a criminal complaint, 37-year-old Justin Lannigan, David Grosse’s tenant, admitted to killing his landlord. The incident took place at Lannigan’s apartment near 31st and State in Milwaukee.
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Court filings reveal that Lannigan called David to fix a refrigerator issue. While David was inspecting the appliance, Lannigan attacked him, reportedly stabbing him over 30 times and choking him until he stopped breathing. Multiple knives were discovered at the crime scene.
Investigation and Legal Proceedings
Justin Lannigan has been charged with first-degree intentional homicide. During the investigation, Lannigan claimed he believed David had installed surveillance cameras in his apartment, influenced by information he found on social media platforms like TikTok and YouTube.
Family members of Lannigan informed police that he had been diagnosed with bipolar disorder and schizophrenia. His mental health had reportedly deteriorated in recent months, leading to increased isolation. A court-ordered competency examination is scheduled, with a report due by March 3, 2025.
Honoring David Grosse’s Legacy
David Grosse was more than just a landlord; he was a valued member of the Milwaukee community who managed his responsibilities with integrity and care. His tragic death serves as a somber reminder of the importance of mental health awareness and community support.
Final Thoughts
As the investigation continues and justice is pursued, David Grosse’s memory will live on through those who knew and appreciated him. Our hearts go out to his family and friends during this difficult time. May he rest in peace.