12 Firearms Seized in Grimsby After Armed Robbery Arrest

Niagara Regional Police have charged a Grimsby man and seized 12 firearms from a residence after an armed robbery at a Main Street West business on Oct. 30, 2026. Police said a firearm was discharged during the robbery.

Officers from the police service’s 8 District responded to the business on Friday. Investigators said a man entered the business armed with a firearm, fired a round and fled. The 8 District Criminal Investigative Bureau took over the investigation and identified a suspect.

Police arrested the man on Nov. 2 with help from the 3 District Street Crime Unit. During a search following the arrest, officers found a loaded handgun in his waistband, police said.

Police also obtained a warrant to search a residence on Kemp Road West in Grimsby. They said they seized three restricted handguns, a prohibited sawed-off shotgun, eight unrestricted firearms and a quantity of ammunition.

Charges and police appeal

Tomasz Kusznier, 37, of Grimsby is charged with:

• Robbery using a firearm;
• Discharging a firearm while reckless as to the life or safety of another person;
• Using a firearm during the commission of an offence;
• Careless use of a firearm;
• Pointing a firearm; and
• Unauthorized possession of a firearm in a motor vehicle.

Police said Kusznier remained in custody and attended a bail hearing on Nov. 3 at the Robert S. K. Welch Courthouse, 59 Church Street, St. Catharines.

Anyone with information about the incident can call Niagara Regional Police at (905) 688-4111, option 3, extension 1009551. To provide an anonymous tip, call 289-248-1058. The incident number is 26-137402.