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Attorney General Jason R. Ravnsborg

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Update to Lake County Law Enforcement Standoff

PIERRE, S.D – Attorney General Marty Jackley, McCook County Sheriff Mark Norris and Lake County Sheriff Tim Walburg confirm that the investigation into the Lake County law enforcement standoff will continue and potential criminal charges are under review. The subject, who was identified as Matthew James Rumbolz, 37, Montrose, did not sustain any injuries.


"This incident demonstrates the dangerous and important work of law enforcement in protecting the public. The cooperative efforts of law enforcement have successfully brought this standoff to a close without any further injury and loss of life," said Jackley.


The standoff was a result of a series of events that began with a traffic stop by a McCook County Deputy in rural McCook County.  A pursuit ensued and ended with a vehicle crash near 453rd Avenue and 243rd Street in Lake County. A McCook County Deputy was shot while trying to engage with Rumbolz, who was located in the car. A Lake County Deputy, who was called for backup was not injured. Rumbolz fled on foot and was located in an adjacent field around 8 a.m. this morning.  Negotiations continued throughout the day until Rumbolz surrendered himself at approximately 3:30 p.m. this afternoon. 


Assisting agencies include: Lake County Sheriff’s Office, McCook County Sheriff’s Office, Miner County Sheriff's Office, Minnehaha County Sheriff's Office, Sioux Falls Police Department, Codington County SWAT, Lincoln County Emergency Management, McCook County Emergency Management, Minnehaha County Emergency Management, Federal Bureau of Investigation, Homeland Security Investigations, Madison Regional Health, South Dakota Highway Patrol and the Division of Criminal Investigation.