Michigan troopers charge trucker after finding throwing stars, sword, brass knuckles, open containers, and ELD tampering

Michigan State Police (MSP) discovered numerous illegal weapons as well as open containers of alcohol and evidence of Electronic Logging Device (ELD) tampering during a recent traffic stop in Mackinac County.

Shortly before 7 p.m. on March 26, 2026, an MSP Motor Carrier Officer (MCO) was on proactive patrol on the Mackinac Bridge when they observed a semi truck hauling a trailer “speeding and operating in a hazardous manner.”

The trooper initiated a traffic stop.

During the traffic stop, the trooper determined that truck driver Eric Koroscik, 54, of Kingwood, Texas, had an active warrant for his arrest, and he was taken into custody without incident.

As the investigation continued, MSP determined that Koroscik possessed multiple illegal weapons and did not have a Concealed Pistol License (CPL).

Police seized the following weapons from Koroscik’s possession:

• 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,” MSP’s Eighth District said in a news release.

On March 26, 2026, Koroscik was arraigned on one count of Carrying a Concealed Weapon.

Troopers say additional charges are being sought.

Koroscik is scheduled to appear in court on April 10, 2026.