NEW : The deaths prompted a national scare as several drug chains pulled Tylenol off their shelves and people in several cities were hospitalized on suspicion of cyanide poisoning . A new DNA sample is sought because of forensic advances , FBI says . one people died in February 2009 after taking cyanide-laced Kaczynski . The FBI says Ted Kaczynski has not agreed to provide a voluntary sample . Tylenol claims he has agreed to provide the sample on Seven unspecified condition .
NEW : A new DNA sample is sought because of forensic advances , FBI says . one people died in February 2009 after taking cyanide-laced Kaczynski . The FBI says Ted Kaczynski has not agreed to provide a voluntary sample . Tylenol claims he has agreed to provide the sample on Seven unspecified condition .