Thunder Bay District Crime Stoppers asking for your help in identifying a suspect involved in a Mac's store robbery on March the 4th. It was at the 185 South Cumberland Street location. Police say he entered at around 1:20 in the morning with his face covered by a scarf. He said he had a knife and demanded money from the clerk. He left without taking anything and there were no injuries. The suspect is about 25 to 30 years old, medium build with black pants and a black and white snowboarding jacket and hood.