Dearborn Heights Man Charged in Assault and Barricaded Gunman Incident

Published on April 29, 2024

Prosecutor Kym Worthy has charged Mark Denis Grzybowski, 63, of Dearborn Heights, in connection with the assault of a 31-year-old year Detroit man and his four-year-old son.

On April 27, 2024, at approximately 1:27 p.m., at a residence in the 24000 block of Eton in Dearborn Heights, it is alleged that Defendant Grzybowski pointed a rifle at the victims, who were performing yard work at a neighboring residence, before barricading himself in his home. Dearborn Heights police officers were dispatched to the scene and set up a perimeter around the home. After a four-hour standoff, involving multiple agencies Defendant Grzybowski exited the residence and was taken into custody. Aspects of this case remain under review.

Mark Denis Grzybowski has been charged with Carrying a Weapon with Unlawful Intent, Felony Firearm - Pneumatic Rifle, and two counts of misdemeanor Assault.*

He was arraigned this afternoon in 20th District Court and given a $50,000 cash bond with a GPS tether. The Probable Cause Conference is scheduled for May 8, 2024, and the Preliminary Examination is scheduled for May 15, 2024, before Judge Mark Plawecki. Please request a photograph of the defendant from the Dearborn Heights Police Department.

*The charges are allegations and defendants are presumed innocent until and unless proven guilty.

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Dearborn Heights Man Charged in Assault and Barricaded Gunman Incident(PDF, 87KB)