Kenilworth police said they were called to K&D Contractors, LLC located at 351 Monroe Avenue around 11 a.m. and found the worker trapped in mud and concrete.
Methylene Chloride may not sound familiar, but it has been used in products commonly used in products used at work and in your home.
If you've ever done painting in your home or office, you may have used products to clean the brushes when you're done.
A high-ranking official with the New York Police Department said protesters had weapons including knives and hammers as well as pamphlets with "Death to America!" written on them.