code: public boolean isDeathRelatedEvent(final Attribute event) {
          if (isDeathEvent(event)) {
              return true;
          }
          if (isPostDeathEvent(event)) {
              return true;
          }
          return isUnorderedEvent(event);
      }
docs: <p>If any of the death related events.</p>
  <p>Only public for testability.</p>
  
  @param event the attribute to check if it's a death event
  @return true if this is a death related event