At Tamil Nadu Chief Minister Jayalalithaa's rally in Salem on Wednesday, two AIADMK workers collapsed and died.Pachiannan, 55, and Periyasamy, 62, died most likely of sunstroke. The ingredients for a tragedy were clearly in place - an abnormal heat spike and the changed dynamics of Jayalalithaa's current campaign. In her campaign for the May 16 polls, the AIADMK chief has unusually chosen to do a rally every alternate day, mostly in the afternoon, clubbing an average 16 candidates an event.