The 19-year-old accused made a brief court appearance on Wednesday facing six firearm-related offences after robbing the Cannabis Culture on King Street East.
A 35-year-old employee was injured after being shot by one of three suspects involved in the robbery.
Police arrived on scene around 8:30 p.m. the evening of the robbery and were able to locate the victim at the rear of the business. He was sent to the hospital with non-life threatening injuries.
Hamilton police arrested the suspect believed to have fired the shots without incident on Tuesday night.
The investigation is ongoing.
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