Tj Martineau Racist EMT/EMS Massachusetts

I work at a local hospital in the city, where this EMT/EMS regularly transports patients to. I catch him regularly making the most vulgar remarks to nurses, and even patients that are really aggressive and racist in nature. Most patients don't take the jokes very well, and you can see it all over their face. I've even been stopped dead in my tracks with some of the slurs I've heard him use. What brought me here though was an appalling joke using the word "coon". I was truly flabbergasted when I heard this word come out of his mouth. I chose to remain anonymous, since he comes across a bit aggressive.