Bike theft in Stoneybatter and possible suspect

My bike was stolen from back garden in Stoneybatter 5th April around 1:30 am. The bike is Shimano Aerofix CR48. It is VERY DISTINCT that this bike circulates ONLY in Japan and production was stopped already. I imported 4 years ago, so this is GENUINE IN IRELAND. SUSPECT On 5th April, my housemate nearly caught the possible suspect in Phoenix Park, 46A bus stop at 17:48. The guy was cycling from North Road. My housemate asked him about the bike, but he didn't stop, didn't say much, then cycled off. But he sounded like he knows it's stolen bike. He's mid 30s, tight grey hair, Irish native, average built, Tracksuit bottom, zip-up hoodie, runner, and tinted glasses. If you see this bike or this man, please take photo if possible, and call garda.