Aaron Schlossin Indicted for First-Degree Murder in Death of Mother
A Scott County Grand Jury has upgraded the charges against Aaron Matthew Schlossin, indicting the Prior Lake man on two counts of first-degree murder. The charges stem from the brutal killing of his mother, Diana Lee Kaiser, at the home they shared in Prior Lake.
Details of the Indictment and Charges
Following a grand jury presentation, prosecutors announced on April 14, 2026, that Schlossin now faces charges of premeditated first-degree murder and first-degree murder while committing criminal sexual conduct. Scott County Attorney Ron Hocevar described the act of matricide as “completely unfathomable” and “heinous,” stating that the office will seek the severest justice allowed under Minnesota law ([AOL/FOX 9](https://www.aol.com/news/prior-lake-man-indicted-1st-205634410.html)).
The Investigation and Discovery
The investigation began in April 2025 after Prior Lake police responded to a welfare check on the 4500 block of Colorado Street. A neighbor reported that he had not seen the resident, Diana Kaiser, since Thursday, April 24. The neighbor told officers he had seen Schlossin exit the home that Thursday evening and inhale nitrous oxide (a “whippit”) before asking for a cigarette ([KSTP](https://kstp.com/kstp-news/top-news/charges-prior-lake-man-killed-his-mother-sexually-assaulted-woman-in-burnsville/)).
Upon entering the home, officers discovered the body of 67-year-old Diana Lee Kaiser under a pile of blankets in a bedroom. Evidence at the scene included:
- Dried blood throughout the bedroom.
- A white-yellow powder found throughout the house and the victim’s room.
- A bloody pair of jeans containing Schlossin’s wallet and ID, found on top of the body.
An autopsy revealed that Kaiser died from “complex homicidal violence,” which included multiple blunt force injuries to the face causing fractures, as well as multiple cut and stab wounds ([Yahoo News](https://www.yahoo.com/news/articles/prior-lake-man-indicted-first-180609103.html)).
Additional Criminal Charges in Burnsville
The violence extended beyond the Prior Lake home. One day after the killing of his mother, Schlossin allegedly forced his way into a woman’s home in Burnsville through a sliding glass door. According to criminal complaints, he pinned the woman against a refrigerator and groped her genitals ([NewsBreak](https://www.newsbreak.com/law-crime-520571/3987622097465-sounded-like-someone-was-being-murdered-man-killed-his-mom-then-sexually-assaulted-a-stranger-as-she-was-cooking-dinner-for-her-son-cops-say)). The victim fought back by punching Schlossin in the face and hitting him with a bag of frozen meat, forcing him to flee the residence.
For this separate incident, Schlossin faces one count of second-degree criminal sexual conduct and one count of first-degree burglary.
Key Case Summary
| Detail | Information |
|---|---|
| Defendant | Aaron Matthew Schlossin |
| Victim | Diana Lee Kaiser (67) |
| Primary Charges | Premeditated 1st-degree murder; 1st-degree murder during sexual conduct |
| Secondary Charges | 2nd-degree criminal sexual conduct; 1st-degree burglary |
| Incident Locations | Prior Lake and Burnsville, Minnesota |
The case remains under the jurisdiction of the Scott County Attorney’s office, with the defendant currently held in the Dakota County Jail.