Ambulances and helicopters responded to the scene. The group was practicing a pyramid trick inside the tent at the University Town Center in Sarasota, an unprecedented eight-person pyramid. “This was going to be one of the highest eight-person pyramids ever done. It’s been done before, but not at this height,” Pedro Reis, founder of the Circus Arts Conservatory, said. “To have an accident like this, right here in our hometown of Sarasota, is tragic, obviously. Our hearts go out to everybody, to those that got injured, and to Nik,” Reis continued. The show, entitled “Synergy,” was scheduled to have its first performance this Friday and it will go on even with a “plan B.” It will run through March 5. The show advertised itself as featuring “an impressive array of international circus stars.