I'm not entirely sure specifically which 'Seven Seconds Jersey City True Story' you're referring to. It could potentially be about an event that occurred in Jersey City and was somehow related to a seven - seconds - long incident. Maybe it's a local news story, a crime that happened very quickly, or some other significant event.
Sorry, I don't have enough information to give specific details about this 'Seven Seconds Jersey City True Story'. It could be a very specific local narrative that requires more research.