From the Michigan State Police
A semi-truck driver has been arrested following a traffic stop by the Michigan State Police (MSP) for driving violations on the Mackinac Bridge. During the stop, MSP discovered the driver was in possession of numerous illegal weapons and was committing multiple additional violations.
On March 25, 2026, at approximately 6:48 p.m., a Motor Carrier Officer (MCO) from the MSP St. Ignace Post was conducting proactive patrol on the Mackinac Bridge when a semi-truck hauling a trailer was observed speeding and operating in a hazardous manner. The MCO initiated a traffic stop on the commercial motor vehicle for the violations. Upon contact, it was determined the driver had an active warrant for his arrest. The driver was taken into custody without incident.
Further investigation revealed the driver was in possession of multiple illegal weapons and did not have a Concealed Pistol License (CPL).
The following items were seized:
• Fifteen double-edged knives, including three equipped with brass knuckle handles
• Two throwing stars, each with four double-edged sides
• Two additional sets of brass knuckles, including one spiked set
• Five loaded pistols
• One loaded rifle
• One shotgun
• One large double-edged sword with a 32-inch blade
In addition to the weapons violations, the driver was found to be in possession of two open containers of alcohol. A subsequent inspection of the commercial vehicle also indicated the driver had allegedly falsified his electronic logging device records.
The driver was arrested and lodged at the Mackinac County Jail.
On March 26, 2026, the driver, identified as 54-year-old Eric Koroscik of Kingwood, Texas, was arraigned in the 92nd District Court in Mackinac County on one count of Carrying a Concealed Weapon. He was issued a personal recognizance bond. Additional charges are being sought for other applicable violations. His next court appearance is scheduled for April 10, 2026.
The defendant is considered innocent unless proven guilty. MSP was assisted by the Mackinac County Sheriff’s Office and the St. Ignace Police Department.
