Impossible to know with any certainty hundreds of varieties are out there but if it is common it is most likely a Bloodgood or more common Atrpurpureum..but you are in JM country so it could be anything ..if you lived in the heartland I would almost guarentee it is one of those two.. The leaves are hard to see but look a little too pointed to "definitly" be one of those two but I'd still say it is one of them "probably"...David