He first appears calling Paul by the phone to tell him that Carol and Joanna are taken to a hospital, and tells him to meet him there. He then meets Paul at the hospital where he tells him that they were attacked by "two or three men", according to Carol's information to officer Joe Charles. Jack is later seen at Joanna's funeral with Paul and Carol, who's in a catatonic state from the assault.
Later, when Paul visits them in Jack's apartment, Jack tells him that a psychiatrist recommended to have Carol moved to an another environment, so she wouldn't have any reminders of that day. Paul agrees, and tells him to call him everyday about Carol's condition, since he's leaving to Tucson.
After Paul returns from Tucson back to New York City, Jack meets him at the airport. Jack then tells Paul that Carol is in the hospital after she returned from the shore, which upsets Paul. They visit her in the hospital, where Jack then tells Paul that the doctors recommended to have her transferred to a sanatorium in Long Island.