Grant County Hostage Incident

Barricaded Subject with Hostage - Arrested  

On Saturday June 21, 2025, at approximately 10:01 AM, the Grant County Sheriff's Office was notified of a male subject armed with a hammer, who was breaking a window, and had entered into a residence at 5215 Classic Ln, Lot 13 (Oak Park Trailer Park) in the Platteville Township.  

Officers from the Platteville Police Department and UW-Platteville Police Department arrived on scene and found that the suspect, along with another male and a female, had left the residence in a black truck. A Sheriff's Deputy arrived on scene and law enforcement located the black truck a few doors down, at lot 4. The deputy and officers went to the trailer at lot 4 to attempt to make contact with the individuals. A female came out onto the deck and while she was talking to officers, a male came out of the back door and ran from the trailer. The male was later located by another responding Sheriff's Deputy and identified as Dustin P. Yanochik, 33, of Dodgeville. Yanochik was arrested for an outstanding warrant.  

Law enforcement at lot 4 then heard yelling coming from inside the trailer home and entered through the front door. When law enforcement entered the residence, they encountered a male subject holding a large knife. Officers gave several commands for the individual to drop the knife and the male then ran to the back of the trailer.  

While law enforcement was setting a perimeter around the home, the back door closed and once it was opened back up, law enforcement could hear a male talking to someone behind a closed door to a bathroom, just inside the back door of the trailer. Law enforcement began trying to talk to the male subject at that time.  

Deputies then learned the other male in the trailer, was Jonathan Blaser, 34, of Shullsburg, and he was inside the residence with a female. Law enforcement negotiated with Blaser for approximatley 30 minutes before the female was allowed to come out of the residence. Law enforcement continued to negotiate with Blaser, and after about two hours of dialog with Blaser, law enforcement deployed OC spray (pepper spray) and eventually a Taser into the room and Blaser was taken into custody.  

Blaser was first transported by Southwest Health EMS to Southwest Health Center for medical clearance and then transported to the Grant County Jail where he was booked in for; Burglary, False Imprisonment, Disorderly Conduct, Criminal Damage to Property, and Resisting Arrest.  

The Sheriff's Office was assisted by the Platteville Police Department, UW-Platteville Police and Southwest Health Center and K9 Riggs.