PJ's color was starting to return. A man named Paul Cannon -- a recovering addict who had left his halfway house and came to the square with thoughts of getting high -- had administered Jay's Narcan. He had been the first to rush over. Maybe now he wouldn't get high, he said. Another woman, Kristin Allen, had massaged PJ's sternum to help her breathe. Allen said she grew up in Mayfair and had been living in the park for three weeks, since finishing a nine-month jail sentence for drugs.